• anonymous
A 2kg object moving at 23 m/s crashes into a barrier. The object takes 0.03s to come to rest. What is the force exerted on the barrier?
  • Stacey Warren - Expert
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  • schrodinger
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  • anonymous
Don't directly give answers pleas :P.. give them hints .. or they would just copy the answer and paste it in their assignments.. we wouldn't want that now do we? :P
  • Shane_B
Yea, this one was so easy I just posted the answer. However, you're right so I'll correct that :) @Utecitec: Use Newton's Second Law: \[F=ma=m\frac{V_f-V_i}{\Delta t}\]
  • anonymous
i think answer will be approximately 1533.33 N or simply 1533 N

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