A moving train is brought to rest in 30 seconds by applying brakes. Find the initial velocity of the train if the retardation due to breaks is 988 m/s.
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a moving train is brought to rest within 30 second by applying breaks find the initial velocity if retardation due to applying breaks is 3m
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a=-998 v=0 t=30
v=u+at
0=u+-998^30
0=u+-29940
u=29940
v=u+at
0=u+-998^30
0=u+-29940
u=29940
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