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c0c0pIe
 3 years ago
a ball of mass 0.2 kg strikes a wall when moving horizontally at 12m/s. if the ball rebounds horizontally at 8m/s, find the impulse exerted by the wall
c0c0pIe
 3 years ago
a ball of mass 0.2 kg strikes a wall when moving horizontally at 12m/s. if the ball rebounds horizontally at 8m/s, find the impulse exerted by the wall

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hosein
 3 years ago
Best ResponseYou've already chosen the best response.1if yes j is:\[\Delta p=j \rightarrow p _{2}p _{1}=j\] \[p _{2}=mv _{f} \] \[p _{1}=mv _{i}\]so j yeilds 0.8 neg sign for direct of j i thnk

din
 3 years ago
Best ResponseYou've already chosen the best response.0I=ft ft = mvmu ft = (0.2)(8)(0.2)(12) = 2.56N*s... i think so..

din
 3 years ago
Best ResponseYou've already chosen the best response.0sorry...the answer is 4J / 4N*s
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