# Physics

How would i solve this?

A 10.0 kg ball falling at 10.0 m/!@#\$%^&s a pile of feathers and comes to a complete stop in 10 s. What force does the pile of feathers exert to stop the ball?

10 N

20 N

100 N

200 N

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1. Force * time = impulse = change in momentum

T (10) = 10 * 10
T = 10 N

which by the way is about the weight of the ball on earth. I think it would take longer.

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posted by Damon
2. thank you

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3. You are welcome.

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posted by Damon
4. wait a minute, add the weight of the ball!.
10 + 10*9.81 = 108 N

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posted by Damon
5. oh okay, thanks Damon :)

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