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Question

A car accelerates from rest at 5m/s2 and then retards to rest at 3m/s2. The maximum velocity of the car is 30 m/s. The distance covered by the car is

A
150 m
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B
240 m
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C
300 m
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D
360 m
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Solution

The correct option is A 240 m
Given maximum Velocity is 30 m/s
Distance travelled during acceleration is given by
3020=2×5×S1
Hence , S1=90m
Distance travelled during retardation
0302=2×3×S2
Hence , S2=150m
Total distance travelled is 90+150=240m

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