Asked by Anonymous
                 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
                    Answered by
            Damon
            
    momentum = .140 * 7.5
force = change of momentum / time
= .140 * 7.5 / .19
    
force = change of momentum / time
= .140 * 7.5 / .19
                    Answered by
            Melissa bowers
            
    F = (mv - 0 ) / t 
F = (0.15 x 8.5 - 0 )/ 0.15 = 8.5 N
F = rate of change of momentum
    
F = (0.15 x 8.5 - 0 )/ 0.15 = 8.5 N
F = rate of change of momentum
                    Answered by
            Damon
            
    Melissa - your method is correct but numbers are different.
    
                    Answered by
            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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