Questions
An arrow is shot into air. Its range is 200 m and its time of flight is 5sec. If g = 10 m/s2, then the horizontal component of velocity of the arrow is
detailed solution
Correct option is D
R=u2sin2θg=200m∴ R=u2(2sinθcosθ)g=200m …. (1)Flight time, t=2usinθg=5sec ….(2)Solving eqs. (1) and (2), we get u=cosθ=40m/sTalk to our academic expert!
Similar Questions
Assertion : When the velocity of projection of a body is made n times, its time of flight becomes n times.
Reason : Range of projectile does not depend on the initial velocity of a body.
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