Question

A 143-g baseball is dropped from a tree 13.0 m above the ground. With what speed would it hit the ground if air resistance could be ignored?

Answer 1

The baseball would hit the ground with a speed of 18.1 m/s if air resistance could be ignored.

Step-by-step explanation:

To find the speed at which the baseball hits the ground, we can use the equation for free fall motion:

vf = sqrt(2gh)

Where vf is the final velocity, g is the acceleration due to gravity (9.8 m/s^2), and h is the height (13.0 m).

Plugging in the values, we get:

vf = sqrt(2*9.8*13.0) = 18.1 m/s

So, the baseball would hit the ground with a speed of 18.1 m/s if air resistance could be ignored.