A boy travels a distance of 150m in 1 minute. His speed is :
A
25ms−1
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B
150ms−1
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C
2.5ms−1
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D
9ms−1
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Solution
The correct option is C2.5ms−1 Given, Distance=150m and time=1minute=60seconds
Using speed formula, Speed=Distancetime taken=150m60s=2.5ms−1
Hence option (b) is correct.