Q.1. A particle leaves the origin with an initial velocity = (6.67) m/s and a constant acceleration = (- 2.48 - 4.29) m/s2. When the particle reaches its maximum x coordinate, what is (a) the velocity, (b) the position vector?

2. A stone is projected at a cliff of height h with an initial speed of 45.0 m/s directed at an angle θ0 = 66.0° above the horizontal. The stone strikes at A, 5.37 s after launching. Find out (a) height h of the cliff, (b) speed of the stone just before impact at A, and (c) maximum height H reached above the ground.

3. At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 41 m horizontally and h = 66 m perpendicularly above the launch point. At the instant it reaches its maximum height above ground level, what is its horizontal displacement D from the launch point?