a car of mass 500 kg is moving with a speed of 36km/hr it is uniformaly negatively accelerated after a diatance of 150 m find force and work done and breks are applied in it
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m = 500kg
u = 36 km/h = 10 m/s
v = 0
a = ?
s = 150m
We know,
v2 - u2 = 2aS
0 - 100 = 300a
a = - 0.33 m/s2 (approx)
Force applied by brakes = m x a = 500 x 0.33 = 165 N
Work done = F x s = 165 x 150 = 24750 J
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u = 36 km/h = 10 m/s
v = 0
a = ?
s = 150m
We know,
v2 - u2 = 2aS
0 - 100 = 300a
a = - 0.33 m/s2 (approx)
Force applied by brakes = m x a = 500 x 0.33 = 165 N
Work done = F x s = 165 x 150 = 24750 J
Hope this question's answer are helpful
and press the point of thanks
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