(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

What is the average force exerted by a shot putter on a 7.0-kg shot if the shot is moved through a distance of 2.8m and is released with a speed of 13m/s?

2. Relevant equations

F = m * a

a = Δv/t

v = Δd/t

3. The attempt at a solution

This is a problem that should be easy, I think. I get one answer, but the answer in the back of the book for this particular problem is way different.

t = d/v = 2.8m/13m/s = 0.22 seconds

a = v/t = 13m/s / 0.22s = 59.09 m/s/s

F = ma = 7kg * 59.09 m/s/s = 413.6 N....right?

My calculation of 413.6N doesn't agree with the book's 210N in the answer key....

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# Homework Help: Calculate F given m, d, and v should be easy.

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