###### Asked in PhysicsBaseball Rules and Regulations

Physics

Baseball Rules and Regulations

# Calculate the velocity of ball just before it hits the ground when dropped from a height of 6m?

## Answer

###### Wiki User

###### May 06, 2013 5:31AM

Here are two different methods to solve this kind of problem.

1) Use one of the formulae for constant acceleration. In this case, vf2 = vi2 + 2as, where vf is the final velocity, vi is the initial velocity (zero in this case), a is the acceleration (9.8 meters / second2), and s is the distance.

2) Do an energy calculation, as follows: Calculate the potential energy at a height of 6 meters, with the formula PE = mgh. Since we can assume that the entire potential energy gets converted to kinetic energy just before the ball hits the ground, solve for velocity, in the kinetic energy formula.

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