Question

When Raleigh Fingers threw a 43-m/s fastball, the 0.145-kg baseball moved forward 2.5 m during the throw. We want to figure out the average forward Force applied to the ball; we'll presume that it was a constant Force. Newton #2 ( F=(delta)p/(delta)t) ) implies that we should first obtain how long (time duration) that Force was applied.

Answer 1

Find the acceleration using equation of kinematics where initial velocity is zero. Use acceleration to find the time and then apply the equation where force is equal to rate of change of momentum to find the force as shown below

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