Question

A 142 g baseball has a momentum of 3.905 kg x m/s. How fast is the baseball traveling?

A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s
E. 27.5 m/s

Answer 1

The baseball with a mass of 142 grams and momentum of 3.905 kg·m/s is traveling at a speed of 27.5 m/s.

Step-by-step explanation:

The student is asking how fast a baseball with a mass of 142 grams and a momentum of 3.905 kg·m/s is traveling. Momentum (p) is the product of mass (m) and velocity (v), so the formula is p = m * v. To find the velocity, we can rearrange the formula to v = p / m.

Given the baseball's mass of 142 g (which is 0.142 kg, since 1 gram = 0.001 kilograms), and the momentum of 3.905 kg·m/s, the calculation for its velocity (v) is:

v = 3.905 kg·m/s / 0.142 kg

v = 27.5 m/s

Therefore, the baseball is traveling at a speed of 27.5 m/s.