1. A skier starts from rest at the top of each of the hills shown in Fig. 6-34. On which hill will the skier have the highest speed at the bottom if we ignore friction:
(a), (b), (c), (d), or (e) c and d equally?

2. A man pushes a block up an incline at a constant speed. As the block moves up the incline,
(a) Its kinetic energy and potential energy both increase.
(b) Its kinetic energy increases and its potential energy remains the same.
(c) Its potential energy increases and its kinetic energy remains the same.
(d) Its potential energy increases and its kinetic energy decreases by the same amount.

Transcribed Image Text:

(a) (b) (c) (d)