Author Question: A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a ... (Read 93 times)

olgavictoria · **on:** Jul 28, 2018

A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a speed of 1 500 m/s. A baseball has a mass of 0.145 kg. What must be its speed if the pitcher's claim is valid?

Question 2

When the rate of burn and the exhaust velocity are constant, a rocket ascends with
a. decreasing acceleration.
b. decreasing velocity.
c. constant velocity.
d. constant acceleration.
e. increasing acceleration.