Q1. a 60kg ball of clay is thrown horizontally at 40 m/s toward a 1.6kg block sitting at rest on a frictionless hi surface. The clays and sticks to the block.
a. What is the speed of the block of clay right after the collision?
b. What impulse does the clay exert on the block?
c. What impulse does the block exert on the clay?
Q2. A certain car battery with a 12.0 V emf has an initial charge of 91.2 A.h. assume that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of 142 W?