a particle is projected at some angle from ground with velocity of 50m/s crosses a 20m high wall after 4 seconds from the time of projection. the angle of projection of particle is (g=10m/s^2)

a particle is projected at some angle from ground with velocity of 50m

1.	a particle is projected at some angle from ground with velocity of 50m/s crosses a 20m high wall after 4 seconds from the time of projection. the angle of projection of particle is (g=10m/s^2)
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a particle is projected at some angle from ground with velocity of 50m/s crosses a 20m high wall after 4 seconds from the time of projection. the angle of projection of particle is (g=10m/s^2)​

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a particle is projected at some angle from ground with velocity of 50m/s crosses a 20m high wall after 4 seconds from the time of projection. the angle of projection of particle is (g=10m/s^2)