Question

A student throws a 140 g snowball at 7.5 m/s at the side of the schoolhouse, where it hits and sticks. What is the magnitude of the average force on the wall if the duration of the collision is 0.19 s ?

Answers

Damon
momentum = .140 * 7.5

force = change of momentum / time
= .140 * 7.5 / .19
Melissa bowers
F = (mv - 0 ) / t
F = (0.15 x 8.5 - 0 )/ 0.15 = 8.5 N
F = rate of change of momentum
Damon
Melissa - your method is correct but numbers are different.
Melissa bowers
I'm sorry if my numbers are different I was trying to give an example so instead of just basically giving out the answer like candy I gave him/her a way to understand it better

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