princeevee
  • princeevee
Newton's Second Law of Motion is expressed as F = ma. A lawn mower with constant mass is pushed over a length of grass. How much force is required to triple the acceleration rate? A. The force required is one-third the original force. B. The force required is three times the original force. C. The force required remains constant. D. The force required is four times the original.
Physics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
From F=ma you can get a=F/m so if you want 3 times a : \[3a=\frac{3F}{m}\] you need to triple the force!
princeevee
  • princeevee
so the answer is B?
anonymous
  • anonymous
yes!

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anonymous
  • anonymous
F=ma a=F/m 3a = 3F/m Triple force is required to triple the acceleration

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