Question

A baseball player hits a 0.15 kg baseball that is initially at rest, changing in momentum by 11 kg • m s. What is the final velocity of the baseball after it is hit?

A) 73.3 m/s
B) 36.7 m/s
C) 22.0 m/s
D) 7.3 m/s

Answer 1

Using the momentum formula, the final velocity of the baseball is calculated to be 73.3 m/s, making option A) the correct answer.

Step-by-step explanation:

The question involves calculating the final velocity of a baseball after being hit, using the concept of momentum from physics. The mass of the baseball is 0.15 kg, and the change in momentum is given as 11 kg • m/s. Using the formula for momentum (momentum = mass × velocity), we can solve for the final velocity.

To find the final velocity, rearrange the formula to solve for velocity: velocity = momentum / mass.

Substituting the given values, the calculation becomes velocity = 11 kg • m/s / 0.15 kg, which simplifies to 73.3 m/s.

Therefore, the final velocity of the baseball after it is hit is 73.3 m/s, which corresponds to option A).