Motion in A Plane

Question: A body of mass m is thrown upwards at an angle ? with the horizontal with velocity v. While rising up the velocity of the mass after t seconds will be

1) $\sqrt {{{(v\,\cos \,\theta )}^2} + {{(v\,\sin \,\theta )}^2}} $

2) $\sqrt {{{(v\,\cos \,\theta - v\sin \,\theta )}^2} - \,gt}$

3) $\sqrt {{v^2} + {g^2}{t^2} - (2\,v\,\sin \,\theta )\,gt}$

4) $\sqrt {{v^2} + {g^2}{t^2} - (2\,v\,\cos \,\theta )\,gt} $

Solution:

Explanation: Explanation

oblique-projectile-motion

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