In Fig. 8-33, a small block of mass m ! 0.032 kg can slide along the frictionless loop-the-loop, with loop radius R ! 12 cm. The block is released from rest at point P, at height h ! 5.0R above the bottom of the loop. How much work does the gravitational force do on the block as the block travels from point P to (a) point Q and (b) the top of the loop? If the gravitational potential energy of the blockEarth system is taken to be zero at the bottom of the loop, what is that potential energy when the block is (c) at point P, (d) at point Q, and (e) at the top of the loop? (f) If, instead of merely being released, the block is given some initial speed downward along the track, do the answers to (a) through (e) increase, decrease, or remain the same? P R Q R Figure 8-33 6 and 17.
In Fig. 8-33, a small block of mass m ! 0.032 kg can slide
Problem 6 Chapter 8
Fundamentals of Physics | 10th Edition
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