Question

10 pts

A pitcher throws a baseball with a velocity of 33 m/s. If the ball has a mass of 4 kg, how
much kinetic energy does the ball have?

Answer 1

2,178J

Step-by-step explanation:

The formula is [ KE = 1/2mv² ] where m = mass and v = velocity.

KE = 1/2(4)(33)²

KE = 1/2(4)(1089)

KE = 1/2(4356)

KE = 2178

Best of Luck!

Answer 2

The answer is

2178 J

Step-by-step explanation:

The kinetic energy of an object given it's mass and velocity can be found by using the formula

`KE = (1)/(2) m {v}^(2) \\`

where

m is the mass

v is the velocity

From the question

m = 4 kg

v = 33 m/s

The kinetic energy is

`KE = (1)/(2) * 4 * {33}^(2) \\ = 2 * 1089 \\ = 2178 \: \: \: \: \: \: \: \:`

We have the final answer as

2178 J

Hope this helps you