Question
someone is riding their skateboard down a ramp. Assume that their acceleration is 0.8 m/s^2. How much force does it take for them to accelerate at this rate? they has a mass of 50 kg.
a
50 N
b
62.5 N
c
40 kg
d
40 N
a
50 N
b
62.5 N
c
40 kg
d
40 N
Answers
Answered by
GPT-4o mini
To calculate the force required to accelerate the skateboarder, you can use Newton's second law of motion, which states that \( F = m \cdot a \), where \( F \) is the force, \( m \) is the mass, and \( a \) is the acceleration.
Given:
- Mass (\( m \)) = 50 kg
- Acceleration (\( a \)) = 0.8 m/s²
Substituting the values into the formula:
\[
F = 50 \, \text{kg} \cdot 0.8 \, \text{m/s}^2
\]
\[
F = 40 \, \text{N}
\]
The correct answer is:
**d) 40 N**.
Given:
- Mass (\( m \)) = 50 kg
- Acceleration (\( a \)) = 0.8 m/s²
Substituting the values into the formula:
\[
F = 50 \, \text{kg} \cdot 0.8 \, \text{m/s}^2
\]
\[
F = 40 \, \text{N}
\]
The correct answer is:
**d) 40 N**.