An object is launched at a speed of 15 m/s. if it rises to a height of 1 m, at what angle was it launched?

Angle at which object is launched is 17.15°

Explanation:

We have given initial velocity at which object is launched u = 15 m/sec

It rises to a height of 1 m

So height h = 1 m

We have to find the angle of projection

Acceleration due to gravity

We know that maximum height is given by

So

So the angle at which object is launched is 17.15°