A car starting from rest and moving with uniform acceleration attain a speed of 60 km per hour in 5 minutes find its acceleration
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Answered by
5
Initial speed, u=0.
Final speed, v=16 km/h =16×10003600=409 m/s.
Time, t=5 minutes =5×60=300 s.
v=u+at, where a is the acceleration.
⇒409=0+300a.
⇒a=409×300=4270 m/s2.
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Answered by
8
u=0, v=60 km/h, t=5 min =5/60=1/12 hr
using v=u+at
60=1/12a
a=720 km/h^2
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