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The driver of the bus moving with a speed of 36kmph sees a child standing in the middle of the road and brings the bus to rest in 4 seconds just in time to save the child .The total mass of the bu is 300kg. What is the average retarding force on the bus?

Asked by rahmani 20th January 2011, 12:00 AM
Answered by Expert
Answer:
dear student,
 
a = -36000/4*3600= 2.5m/s^2,
 
F = mXa = 300 X 2.5 = 750 N
 
Please check if the question detail;s are right!!
 
Hope this helps.
Team
Topperelarning.com
Answered by Expert 20th January 2011, 10:19 PM
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