The spedometer of car is shown below. Find the acceleration of the car and its displacement .9:25- 36kmph ,9:45-72kmph
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Answer:
v1=36*(5/18)m/s=10m/s
v2=72*(5/18)=20m/s
t=20min=20*60s
Acceleration =(v2-v1) /t=(20-10)/(20*60)
=1/120m/s^2
S=ut+1/2at^2
=(10*1200)+1/2*1/120*1200*1200
=18000m
=18km
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