In the following questions g = 10 m/s2
1. A projectile has an initial velocity of 125 m/s.
2. The range of a projectile is 1500 metres with an initial velocity of 150 m/s.
3. A stone is thrown to clear a wall that is 4 metres high and 10 metres from the point of projection. If the angle of projection is 50o calculate the initial velocity of the stone and the distance beyond the wall it strikes the ground.
Assume that the stone is projected from ground level.
Hint: Use the equation of the path of the projectile. Note that the point (10,4) lies on the path.