Question
Tue August 28, 2012 By:
 

A BUS OF MASS 5000KG START FROM REST AND ROLLS DOWN A HILL . IF IT TRAVELS A DISTANCE OF 200M IN 10 SECONDS.FIND THE ACCLERATION OF BUS AND FORCE ACTING ON THE BUS?

Expert Reply
Tue August 28, 2012
displacement, s = 200 m
time, t = 10 s
thus using the second equation of motion, we an say that
s = 1/2at2 (as initial velocity is 0)
thus a = 4 m/ss
thus force on the bus wil be = ma = 2000N
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