A baseball has a mass of 145 g. A pitcher throws the baseball so that it accelerates at a rate of 80 m/s2. How much force did the pitcher apply to the baseball?(1 point)

Responses

65 N
65 N

0.6 N
0.6 N

1.8 N
1.8 N

11.6 N

1 answer

To find the force applied to the baseball, we can use Newton's second law of motion, which states:

\[ F = m \cdot a \]

where:

  • \( F \) is the force,
  • \( m \) is the mass,
  • \( a \) is the acceleration.

Given:

  • Mass (\( m \)) = 145 g = 0.145 kg (since 1 kg = 1000 g)
  • Acceleration (\( a \)) = 80 m/s²

Now, we can calculate the force:

\[ F = 0.145 , \text{kg} \times 80 , \text{m/s}^2 \] \[ F = 11.6 , \text{N} \]

Thus, the correct answer is:

11.6 N