A bike while traveling with a speed of 72 km per h, the brakes were applied and it stopped in 6s. Find the distance traveled by the bike after the brakes were applied.
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given. u = 72 km/hr = (72*5)/18 = 20 m/sec
v = 0, t = 6 sec, s = ?
v = u + at
0 = 20 + a*6
=> a = -20/6 = -10/3 m/sec²
v² - u² = 2as
0 - 20² = 2*(-10/3)*s
=> -400 = -20/3 *s
=> s = -400*-3/20
=> s = 60 m
bike travels 60 m before coming to a stop
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