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A projectile is thrown from a point in a horizontal plane such that the horizontal and vertical velocities are 9.8 ms-1 and 19.6ms-1 . It will strike the plane after covering distance of 

a
39.2 m
b
19.6 m
c
9.8 m
d
4.9 m

detailed solution

Correct option is A

R=2uxuyg=2×9.8×19.69.8=39.2 m

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