A body thrown with an initial speed of 96,ft/sec reaches ground after.......... sec (g = 32ft/{sec ^

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2.Motion in Straight Line

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A body thrown with an initial speed of $96\,ft/\sec $ reaches the ground after..........$sec$ $(g = 32ft/{\sec ^2})$

A

$3$

B

$6$

C

$12$

D

$8$

Solution

(b)Time of flight $ = \frac{{2u}}{g} = \frac{{2 \times 96}}{{32}} = 6\;sec$

Standard 11

Physics

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