In: Physics
a 4.2 g coin sliding to the right at 21.4 cm/s makes
an elastic head-on collision with a 12.6g coin that is initially at
rest. after the collision, the 4.2g coin moves to the left at
10.7cm/s.
a. find the final velocity of the other coin in cm/s
b. find the amount of kinetic energy transferred to the 12.6g
coin