A bus running at a speed of 18 KM/H is stopped in 2.5 seconds by applying brakes Calculate the retardation produced
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Answer:
-2 m/s^2
Step-by-step explanation:
Initial velocity,u= 18Km/h= 5m/s
Final velocity,v= 0m/s
Time= 2.5s
Acceleration,a= ?
From 1st equation of motion: v=u+at
0=5+a(2.5)
a(2.5)=-5
a=-5/2.5
a=-2m/s^2
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