Question

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

Answer 1

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 2

@caozeyuan @Noodles24

Answer 3

B is wrong

Answer 4

weight is gravitational force

Answer 5

and G=mg, g=9.81ms^-2

Answer 6

@caozeyuan What's the unit? 519.4 what???

Answer 7

force in N, mass in kg, acceleration in ms^-2

Answer 8

519.4 Newtons