Question

You push a friend sitting on a swing with a force of 210N. She accelerates at a rate of 4 m/s^2. What is the mass of your friend? What is your friend's weight?

Answer 1

I think you would use F=MA
Force= Mass * Acceleration for this question

Answer 2

@Zale101
A. M = F/A
M = 210N/4m/s^2
M = 52.5kg or 53kg

B. F = M * A
F = 53kg * 4m/s^2
F = 212N

Answer 3

@satellite73