a car is travelling at a speed of 72 km/ h the breaks are applied so as to produce a uniform acceleration of -1 m/ s^2 find the distance it travels after applying brakes so that it completely stops?
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Speed in m/s=72×5/18
= 20m/s
v²-u²=2as
0²-(20)²=2×-1×s
-400=-2s
s=200m
∴The car will travel a distance of 200m before coming to rest.
Answer:
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