A powerful motor cycle can accelerate from rest to 28m/sec in only 4 seconds what is it's average acceleration . How far does it travel in that time .
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Starting velocity u =0 m/s
End velocity v= 28m/s in time t= 4sec
If accleration = f = 28/4 = 7 m/s^2
Accleration = 7m/sec^2
If distance travelled =S
S= ut +1/2 ft^2 = 0*4+(1/2)*7*4^2 =56 m
Distance travelled in 4 sec = 56 m
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