10. A small motor is used to operate a lift that raises a load of bricks weighing 1200 N to a height of 15 m in 30 s. How much power is used for this task by the motor? A. -600 W B. 600 W C. 18000 W D. 540000 W 11. A cat has just caught a mouse and decides to impress his human by showing it to him. With a constant horizontal force of 3 N, the cat drags the mouse across the rug at a constant speed v. If the cat is using a power of 6W, what is the cat's speed? A. -3 m/s B. -2 m/s C. 2 m/s D. 3 m/s
10. A small motor is used to operate a lift that raises a load of bricks weighing 1200 N to a height of 15 m in 30 s. How much power is used for this task by the motor? A. -600 W B. 600 W C. 18000 W D. 540000 W 11. A cat has just caught a mouse and decides to impress his human by showing it to him. With a constant horizontal force of 3 N, the cat drags the mouse across the rug at a constant speed v. If the cat is using a power of 6W, what is the cat's speed? A. -3 m/s B. -2 m/s C. 2 m/s D. 3 m/s
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter5: Energy
Section: Chapter Questions
Problem 4P: a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the...
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