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A particle is projected with a velocity u making an angle θ with the horizontal. At an instant, its velocity v is at right angle to its initial velocity u. Then, v is

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Important Questions on Motion in a Plane

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Two balls, A and B, are thrown with speeds u and u2, respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. If the angle of projection of ball B is 15° with the horizontal, then the angle of projection of A is
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A projectile can have the same range R for two angles of projection. If t1 and t2 are the times of flights in the two cases, then
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A cannon ball has a range R on a horizontal plane(for ground to ground projectile motion). If h and h' are the greatest heights in the two paths for which this is possible, then
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Two seconds after projection, the projectile is travelling in a direction inclined at 30° to the horizontal and after one more second, it is travelling horizontally. The magnitude and direction of its initial velocity, respectively, are
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If a ball is thrown from the ground level to just cross a wall 4 m high, at a distance of 4 m and falls at a distance of 14 m from the wall, then the magnitude of the velocity of the ball is
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Horizontal range and the maximum height of a projectile are R and H, respectively. If a constant horizontal acceleration, a=g4, is given to the projectile due to air, then what will be the horizontal range and the maximum height of the projectile, respectively?
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A particle is projected from the ground with velocity v, at an angle θ to the horizontal. The average velocity of the particle between the point of projection and the maximum height of projectile is
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A particle is projected from a tower, as shown in the figure. The distance from the foot of the tower where it will strike the ground will be (Take g=10 m s-2)

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