Question

A 0.150 kg baseball has 118 j of KE. how fast is the ball moving?(unit=m/s)

Answer 1

Answer:

v = 5.95 m/s

Explanation:

Given,

The mass of the baseball, m = 0.150 Kg

The kinetic energy (K.E) of the baseball, E = 118 J

The kinetic energy of a body is directly proportional to the square of its velocity. The formula for kinetic energy is given by

                                      E = 1/2 mv²     joules

Solving for v

                                  v² = 2mE

                                  $v = \sqrt{2mE}$   m/s

Substituting the given values in the above equation,

                                 $v = \sqrt{2X0.15X118}$      

                                         v = 5.95 m/s

Hence, the velocity of the baseball is,  v = 5.95 m/s