equus419 equus419

19-04-2017
Physics

contestada

A car moves at a velocity of 8.5 meters per second. It then accelerates at a constant rate of 2.5 m/s^2 for a total time of 5 seconds. How fast is the car moving at the end of the 5 seconds?

I got 21 mps... is this right?

Respuesta :

nourhanashraf9 nourhanashraf9

30-04-2017

according to motion 1st equation
vf=vi+at
=8.5+2.5×5
so the answer is 106.25 m/s

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