# A 1500 kg elevator moves upward with constant speed

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 ...