A 1500 kg elevator moves upward with constant speed

The elevator takes 4.0 s to brake to a stop at the first floor. What is Tom’s apparent weight while the elevator is braking? Solution . Problem 82. Jim with mass of 70 kg is in an elevator that is moving up at the speed of 10 m/s. The elevator takes 4.0 s to brake to a stop at the fifth floor. IV. The elevator is moving at a constant velocity a = 0 m/s2 (regardless of direction) Î T = mg = (800 kg)(9.8 m/s2) = 7840 N V. The elevator is moving upward and comes to rest Using 222 vv=+o a∆x 2 (10 )2 22(25 m a vos x m) − − == ∆ a = – 2 m/s2 Therefore, T = m(g + a) = (800 kg)(9.8 m/s2 – 2 m/s2) = 6240 N VI. The elevator is ... What will a spring scale read for the weight of a 55 kg woman in an elevator that moves a upward with constant speed of 6 0 m s b downward with constant speed of 6 0 m s c upward with acceleration of 0 33 g d downward with acceleration 0 33 g and e in free fall? Part C: The Elevator Moves Up With Constant Velocity. The elevator (and you) accelerated for 5 seconds, so it is moving upward with a velocity of 10 m/s. Since the elevator is moving with constant velocity, your acceleration is (5b) ____ m/s2.A 650-kg elevator starts from rest. It moves upward for 3.00 s with constant acceleration until it reaches its cruising speed of 1.75 m/s. (a) What is the average power of the elevator motor during this time interval? (b) How does this power compare with the motor power when the elevator moves at its cruising speed? What is the speed of the bolt just as it hits the elevator floor (b) according to an observer in the elevator? (c) According to an observer standing on one of the floor This is part of a here. Okay, so we're gonna let why be the upward direction and why zero b the initial point of the floor of the elevator.73. An elevator has a mass of 4500kg and can carry a maximum load of 1800kg. If the cab is moving upward at full load at 3.8m/s, what power is required of the force moving the cab to maintain that speed? mg F a F mg kg m s kN F mg F F F m kg kg kg a a net a g total (6300 )(9.8 / ) 61.74 0 0 4500 1800 6300 2 This means that the elevator was moving downward, with a negative velocity, before it stopped. • The speed at which the exact balance between the upward drag force and the downward weight A wooden box, with a mass of 22 kg, is pulled at a constant speed with a rope that makes an angle of...Sep 29, 2013 · The force exerted by the floor is the upward force. When the elevator is not moving or moving at a constant speed, the girl’s weight is equal to the force exerted by floor. At this position, the scale reading is equal to the girl’s weight. A 58.0 kg girl weighs herself by standing on a scale in an elevator. Girl’s weight = 58 * 9.8 = 568.4 N It moves upward for3 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this compare with its power during an upward cruise with constant speed?A cable exerts a constant upward tension of magnitude 1.82 x 10 of 1.50 m. HINT N on a 1.60 x 103 kg elevator as it rises through a vertical distance (a) (b) Find the work done by the tension force on the elevator (in J). 27300 J Find the work done by the force of gravity on the elevator (in J). 23500 J Solution or Explanation (a) (b) The elevator accelerates upwards with constant accelerates upwards with constant acceleration for a distance of 3.0 m and then starts to slow down. An elevator weighing 5000 kg is moving upward and tension in the supporting cable is 5000 N . Find upward acceleration .18. A 90-kg man stands in an elevator that is moving up at a constant speed of 5.0 m/s. The force exerted by him on the floor is about:   A) zero   B) 90 N   C) 880 N   D) 450 N   E) 49 N   19. A 90-kg man stands in an elevator that has a downward acceleration of 1.4 m/s2. The force exerted by him on the ... The elevator accelerates upward at a constant rate of 1.2 m/s 2 d. The elevator accelerates downward at a constant rate of 1.2 m/s 2 2. A crane accelerates a 175 kg load is upward. A 78-kg man stands on a bathroom scale inside an elevator. (a) The elevator accelerates upward from rest at a rate of 1.20 m/s. 2. for 1.50 s. What does the scale read during this 1.50 s interval? 858 N (b) The elevator continues upward at constant velocity for 8.50 s. What does the scale read now? 764 N China Observation Elevator manufacturers - Select 2020 high quality Observation Elevator products in best price from certified Chinese Observation Lift manufacturers, Fuji Observation Elevator suppliers, wholesalers and factory on Made-in-China.com.You are standing on a bathroom scale in an elevator in a tall building. Your mass is 72-kg. The elevator starts from rest and travels upward with a speed that varies with time according to: When t = 4.0s , what is the reading on the bathroom scale (a.k.a. Force Normal)? 4.6 m/s/s = + = - = ® = + = N (72)(9.8) (72)(4.6) N N net F F mg ma F ma ... Measurements of the atmosphere, wind speed, radiation, six surrounding rings, and the planet's old and newly found satellites were recorded. The encounter ended December 15, 1980. The spacecraft took more than 17,500 photographs of Saturn and its satellites. Scientific results from the Pioneer Saturn encounter - Summary 4. A 7.5 kg cannon ball leaves a canon with a speed of 185 m/s. Find the average net force applied to the ball if the cannon muzzle is 3.6 m long. 5. A wooden block is pulled at a constant acceleration of 1.4 m/s2. Find the net applied force on the block if its mass is 0.6 kg. 6. A 95 N net force is applied to an ice block with a mass of 24 kg. Question 1057843: A block of mass m1 = 3.00 kg slides along a frictionless table with a speed of 13.0 m/s. Directly in front of it, and moving in the same direction, is a block of mass m2 = 4.00 kg moving at 1.00 m/s. A massless spring with a spring constant k = 1620 N/m is attached to the backside of m2.
between t 0 and the time the front of the box reaches the elevator. I(s) I(s) 26. 30 kg -0.20 Elevator Door 1.2 Beginning at time t 0, a student exerts a horizontal force on a box of mass 30 kg, causing it to move at 1.2 In's toward an elevator door located 16 m away, as shown above. The coefficient of kinetic friction 11k between the

Jun 21, 2011 · In this case, when the elevator is standing still, the cable tension is given by: A = 9.8 m/s^2 (acceleration due to gravity being counteracted by the cable) T = 2010*9.8 = 19698 kg*m/s^2 = 19698 newtons. When accelerating upward: A = 9.8 m/s^2 + 1.2m/s^2 = 11m/s^2. T = 2010 * 11 = 22110 kg*m/s^2 = 22110 newtons ANSWER

Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator A 72.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of...

If the elevator stops accelerating and travels at a constant speed upward, the tension returns to the value it held while the elevator was stationary. The fish has a mass bigger than 0. This is why it wants to stay where it is. But the elevator moves and they are both connected by the rope.

An elevator cab is moving upward at a constant speed of 4.00 m/s. The power of the motor driving the elevator cab is 150 kW. Find the mass of the elevator cab. A) 3.83×103 kg B) 3.75×104 kg C) 3.75×102 kg D) 1.75×102 kg E) 3.37×103 kg

(c) The elevator moves upward with decreasing speed. elevator were traveling downwards at a constant speed of 2v, how long would it take for. A picture frame of mass 0.5 kg is held in place by a massless wire making an angle of 20o with respect to the horizontal.

Jan 23, 2013 · The CN Tower says its elevators travel up to 22 km/h, taking passengers to the top in 58 seconds. Although it doesn’t own a speed record, the CN Tower does have one world elevator record: It has ...

The elevator accelerates upward at a constant rate of 1.2 m/s 2 d. The elevator accelerates downward at a constant rate of 1.2 m/s 2 2. A crane accelerates a 175 kg load is upward.

A 2.0-kg block slides on a frictionless 25° inclined plane. A force of 4.6 N acting parallel to the incline and up the incline is applied to the block. What is the acceleration of the block? 1) 1.8 m/s2 up the incline 2) 2.3 m/s2 up the incline 3) 6.6 m/s2 down the incline 4) 1.8 m/s2 down the incline 5) 2.3 m/s2 down the incline An elevator, fully loaded with passengers, has a mass of 4000 kg. What power must be delivered by the motor (tension in the cable) so that the elevator moves up at constant speed of 2.0 m/s? A) 78.4 kW B) 18.4 kW C) 71.3 W D) 80.0 kW E) 98.2 kW Ans: Power 4000 9.8 2 78.4 kW u u Tv mgv Q10. A student lifted his bag to a height h. The work done ... 18. A 90-kg man stands in an elevator that is moving up at a constant speed of 5.0 m/s. The force exerted by him on the floor is about:   A) zero   B) 90 N   C) 880 N   D) 450 N   E) 49 N   19. A 90-kg man stands in an elevator that has a downward acceleration of 1.4 m/s2. The force exerted by him on the ...