Question

(no 4. A block is observed to have a kinetic enetop.The y of 600 J at the bottom of a smooth friction) hill. It continues up the hill to block upon stopping is a. zero The total mechanical energy of the stop. ( 600J d. less than 600J b. more than 600 J 5. A skier, of mass 40 kg, initially at rest. Pitst hillif the vertica shes off the top of a hill. How y at rest, Pus hil if the vertical height of the hill is fast will she be moving at the bottom of 10 m? (ignore friction) a. 7 m/s d. 196 m/s 14 m/s c. 49 m twice as far while applying the same force, you do dOtwice as much work a. No work c. four times as much work the same amount of work 25 downward from the horizontal. The work done by the shopper as she moves down a 42 m length of aisle is 7. A shopper in a supermarket nuches a cart with a force of 25 N directed at an angle of d. 950 J c. 875 J a. 1000 J 952 J 8. Which of the following is that form of energy associated with an object's location in a conservative force field? Potentialb. Thermal c. Kinetic d. Heat 9. The unit of work, joule, is dimensionally the same as: a. newton/second. b. newton/kilogram.

Answer 1

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