An arrow is shot into air its range is 200 metres and its time of flight is 5 seconds. If g = 10 m/sec², then the horizontal component of velocity of the arrow is-
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Question

An arrow is shot into air its range is 200 metres and its time of flight is 5 seconds. If g = 10 m/sec², then the horizontal component of velocity of the arrow is-

G1 Physics · Accepted Answer

Horizontal motion has no acceleration, so the horizontal velocity is constant. Since the horizontal range is R = 200 m in T = 5 s, uₓ = R/T = 200/5 = 40 m/s. Hence option D.