A ball andbat, approaching one another each with the same speed of1.7 m / s , co
ID: 1681659 • Letter: A
Question
A ball andbat, approaching one another each with the same speed of1.7 m/s, collide. a. Findthe speed of the ball after the collision. (Assume the mass of thebat is very much larger than the mass of the ball, a perfectlyelastic collision, and no rotationalmotion).b. Find the factor by which the kineticenergy of the ball increases due to thecollision a. Findthe speed of the ball after the collision. (Assume the mass of thebat is very much larger than the mass of the ball, a perfectlyelastic collision, and no rotationalmotion).
b. Find the factor by which the kineticenergy of the ball increases due to thecollision
Explanation / Answer
m1v1 = m1v1+m2v2 But ignore the mass of the first ball and assume that the mass ofthe bat is so large that it has 2*v. v1 = v1+2v v1 = 3v speed = 1.7*3 = 5.1 m/s Kinetic energy increases by a factor of 3, presumably.
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