Question

09)A car starts from rest and acquires a velocity 54km/h in 2 minutes. Find:-
1Acceleration

2Distance travelled by car during this time.
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Answer 1

Answer: initial velocity=of

final velocity= 54km/hr=15m/s

time=2 minutes=120 seconds

acceleration= final velocity- initial velocity/ time

= 15-0/120

= 15/120m/s2=0.125m/s2.

distance travelled=speed×time

= 54×2/60

=9×2/10

= 1.8 km