Asked by Anonymous
a 45kilo roller-blader accelerates from rest to 4.5ms-1 in 3.0seconds.
calculate the force requied by the roller-blader, if there are opposing friction forces of 40N acting? include a lbelled vector diagram in your answer.
calculate the force requied by the roller-blader, if there are opposing friction forces of 40N acting? include a lbelled vector diagram in your answer.
Answers
Answered by
drwls
The subject is physics, not your grade level.
We cannot provide figures with our answers.
The acceleration needed in this case is
a = (velocity increase)/(time)
= 4.5/3.0 = 1.5 m/s^2
Use Newton's second law,
F = m a,
to get the force required (in Newtons).
We cannot provide figures with our answers.
The acceleration needed in this case is
a = (velocity increase)/(time)
= 4.5/3.0 = 1.5 m/s^2
Use Newton's second law,
F = m a,
to get the force required (in Newtons).
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