Question

Newton's Second Law Quick Check
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Question
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

1.8 N
1.8 N

0.6 N
0.6 N

11.6 N
11.6 N

Answer 1

To find the force applied to the baseball, you can use Newton's Second Law, which states:

\[ F = m \times a \]

Where:
- \( F \) is the force,
- \( m \) is the mass,
- \( a \) is the acceleration.

First, convert the mass of the baseball from grams to kilograms:

\[ 145 \, \text{g} = 0.145 \, \text{kg} \]

Now, plug in the values:

- Mass (\( m \)) = 0.145 kg
- Acceleration (\( a \)) = 80 m/s²

Now calculate the force:

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

\[ F = 11.6 \, \text{N} \]

So, the correct response is:

**11.6 N**