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A body is projected upwards under gravit...

A body is projected upwards under gravity with a speed of 19.6 . Then, maximum height which can be reached is

A

4.9 m

B

19.6 m

C

9.8 m

D

39.2 m

Text Solution

Verified by Experts

The correct Answer is:
B
We know that,
`v^(2) = u^(2) - 2gh`
Here, v = 0, u = 19.6 m/s
`rArr 0 = (19.6)^(2) - 2 xx 9.8 xx h`
`rArr 19.6 h = (19.6)^(2)`
`h = ((19.6)^(2))/(19.6) = 19.6 m`
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Knowledge Check

  • A cricket ball is thrown up with a speed of 19.6 m/s. The maximum height it can reach is (take g= 9.8 m/ s^2 )

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