Question

Look at Zeke.



He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s2. How much force does it take for him to accelerate at this rate? Zeke has a mass of 50 kg.

a
62.5 N
b
40 N
c
40 kg
d
50 N

Answer 1

To calculate the force required to accelerate Zeke on his skateboard, you can use Newton's second law of motion, which states:

\[ F = m \times a \]

Where:
- \( F \) is the force in newtons (N),
- \( m \) is the mass in kilograms (kg),
- \( a \) is the acceleration in meters per second squared (m/s²).

Given:
- \( m = 50 \, \text{kg} \)
- \( a = 0.8 \, \text{m/s}^2 \)

Now, plug in the values:

\[ F = 50 \, \text{kg} \times 0.8 \, \text{m/s}^2 \]

\[ F = 40 \, \text{N} \]

So, the force required for Zeke to accelerate at 0.8 m/s² is **40 N**.

The correct answer is **b) 40 N**.