# physics

I need a 1.00 W motor to push a garbage compactor so that it squishes some garbage. The garbage has a spring constant of 49.7 N/m. If I am going to squish it 30 cm, determine how much time the compactor takes.

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1. Average force = Fav
= (1/2)*49.7 N/m*(0.30 m)
= 7.46 N
Work = Fav*X = 2.24 J
Power*T = 2.24 J
T = 2.24 seconds

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posted by drwls
2. thats not right. you forgot to square the x value. 0.30 should have been 0.09

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posted by parker

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