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A projectile thrown at an- angle of 45^@...

A projectile thrown at an- angle of `45^@` to the horizontal has a range 19.6m. Its velocity at the highest point is g = `10m/s^2`.

A

19.6m/s

B

5m/s

C

10m/s

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
Given` u^2/10` = 19.6 or `u^2` = 196 or u = 14m/s velocity at the heigest point `= u cos45^@= 14 xx 1/sqrt2` = 10m/s.
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