A body is thrown with a velocity of 9.8 ,m/s making an angle of 30^o with horizontal. It will hit gr

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3-2.Motion in Plane

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A body is thrown with a velocity of $9.8 \,m/s$ making an angle of $30^o$ with the horizontal. It will hit the ground after a time ....... $\sec$

A

$1.5 $

B

$1$

C

$3$

D

$2$

Solution

(b) $T = \frac{{2u\sin \theta }}{g} = \frac{{2 \times 9.8 \times \sin 30}}{{9.8}} = 1\,s$

Standard 11

Physics

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