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

1 answer

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.