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A stone is projected from the ground with velocity 25 m/s. Two seconds later, it just clears a wall 5m high. The angle of projected of the stone is (g = 10 m/sec 2 ) (a) 30 o (b) 45 o (c) 50.2 o (d) 60 o



A stone is projected from the ground with velocity 25 m/s. Two seconds later, it just clears a wall 5m high. The angle of projected of the stone is (g = 10 m/sec2)


        (a)    30o


        (b)    45o


        (c)    50.2o


        (d)    60o


Grade:upto college level

1 Answers

Simran Bhatia
348 Points
8 years ago

(a)

    5 = 25 sinx × 2 -1/2 g(2)2

    sin x = 1/2 => x = 30o

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