Question
11. A hockey player hits a puck with a force of 20 N, and the puck accelerates at 4 m/s². What is the mass of the puck?(1 point)
Responses
15 kg
15 kg
24 kg
24 kg
80 kg
80 kg
5 kg
Responses
15 kg
15 kg
24 kg
24 kg
80 kg
80 kg
5 kg
Answers
GPT-4o mini
To find the mass of the puck, we can use Newton's second law of motion, which states that \( F = ma \), where:
- \( F \) is the force applied (in Newtons),
- \( m \) is the mass (in kilograms), and
- \( a \) is the acceleration (in meters per second squared).
Given:
- \( F = 20 \, \text{N} \)
- \( a = 4 \, \text{m/s}^2 \)
We can rearrange the formula to solve for mass \( m \):
\[
m = \frac{F}{a}
\]
Substituting in the known values:
\[
m = \frac{20 \, \text{N}}{4 \, \text{m/s}^2} = 5 \, \text{kg}
\]
Therefore, the mass of the puck is **5 kg**.
- \( F \) is the force applied (in Newtons),
- \( m \) is the mass (in kilograms), and
- \( a \) is the acceleration (in meters per second squared).
Given:
- \( F = 20 \, \text{N} \)
- \( a = 4 \, \text{m/s}^2 \)
We can rearrange the formula to solve for mass \( m \):
\[
m = \frac{F}{a}
\]
Substituting in the known values:
\[
m = \frac{20 \, \text{N}}{4 \, \text{m/s}^2} = 5 \, \text{kg}
\]
Therefore, the mass of the puck is **5 kg**.