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Warmacblu
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Homework Statement
As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air at a speed of 11.4 m/s. In the process, he moves his hand through a distance of 1.68 m.
Acceleration of gravity is 9.8 m/s2.
If the ball has a mass of 0.168 kg, find the force he exerts on the ball to give it this upward speed. Answer in units of N.
Homework Equations
F = ma
A kinematic equation, not sure which one though.
The Attempt at a Solution
F = ma
F = .168 kg * (11.4 / 1.68) = 1.14
F = ma
F = .168 kg * (1.68 / 11.4) = .025
I did look at old threads regarding this question but cannot understand the hints. I guess I need to find a proper acceleration taking into account all the forces acting upon the ball but I do not know which kinematic equation to use.
Any help is appreciated,
Thanks
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