A stone is projected from the ground with a velocity of 20 m/s at angle 30^(@) with the horizontal. After one second it clears a wall then find height of the wall. (g=10ms^(-2))

A stone is projected from the ground with a velocity of 20 m/s at angl

1.	A stone is projected from the ground with a velocity of 20 m/s at angle 30^(@) with the horizontal. After one second it clears a wall then find height of the wall. (g=10ms^(-2))
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