If an object is thrown straight up from the ground what velocity does it need to be thrown in order to reach a height of 50 ft?

Object is thrown with a velocity of 56.74 m/sec

Step-by-step explanation:

We have given height h = 50 feet

When the object reach at its maximum height its final velocity will be o

So final velocity v = 0 m/sec

Acceleration due to gravity ( Negative sign is due to upward direction )

From third equation of motion

So object is thrown with a velocity of 56.74 m/sec