A 0.2-kg point mass moving on a frictionless horizontal surface is attached to a rubber band whose other end is fixed at point P. The rubber band exerts a force F = bx toward P, where x is the length of the rubber band and b is an unknown coefficient. The mass moves along the dotted line in Figure 10-37. When it passes point A, its velocity is 4 m/s directed as shown. The distance AP is 0.6 m and BP is 1.0 m

(a) Find the velocity of the mass at points B and C.

(b) Find b.

Transcribed Image Text:

0.6 m 0.6 m 1.0m в