a 100m long train,remaining at a speed of 48km/hr passes a tunnel in 21sec l.let's calculate the length of the tunnel.
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GIVEN
INITIAL VELOCITY= 48 KM/ H
IN M/S = 48*5/18 = 13.34m/s
time taken = 21 sec
acceleration = 0
equation = ut + 1/2 at ^ 2
= 13.34* 21 + 1/2*0*21^2
= 13.34 *21
= 280.14 m
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a 100m long train,remaining at a speed of 48km/hr passes a tunnel in 21sec l.let's calculate the length of the tunnel.
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