Question

A 58-kg boy swings a baseball bat, which causes 0 0.140-kg baseball to move toward third base with velocity f 38.0 m/s. Calculate the kinetic energy of the baseball(rounding your answer to the integer)

Answer 1

101 J

Step-by-step explanation:

The kinetic energy of an object is given by

`K=(1)/(2)mv^2`

where

m is the mass of the object

v is its speed

For the baseball in this problem,

m = 0.140 kg

v = 38.0 m/s

Substituting into the equation, we find the kinetic energy of the ball:

`K=(1)/(2)(0.140)(38.0)^2=101 J`