Question

A baseball has a mass of 0.15 kg. The baseball is pitched so that it is 1 meter above home plate and moving at 40 m/s. What is the kinetic energy of the baseball?

Answer 1

Answer:

K.E = 120 Joules.

Explanation:

Given the following data;

Mass = 0.15kg

Distance = 1m

Velocity = 40m/s

To find kinetic energy;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

$K.E = \frac{1}{2}MV^{2}$

Where;

• K.E represents kinetic energy measured in Joules.

• M represents mass measured in kilograms.

• V represents velocity measured in metres per seconds square.

Substituting into the equation, we have;

$K.E = \frac{1}{2}*0.15*40^{2}$

$K.E = 0.075*1600$

K.E = 120 Joules.

Therefore, the kinetic energy of the baseball is 120 Joules.