Answers

2015-11-11T13:45:33+05:30
the rate of change of velocity is called as acceleration . so , change in velocity is required to form acceleration. and unbalanced forces also cause to form acceleration.
   i hope it helps ..................................^_^
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2015-11-11T13:57:01+05:30
A force is required to cause a body accelerate ,

F = ma ,
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