Question

A net force of 500 N gives an object an acceleration of 4.00 meter per s^2 a.) What net force is needed to give the object an acceleration of 12 meter per s^2? b.) What net force is required to keep the object moving at a constant velocity?

Answer 1

a)

$$m=\frac{F_1}{a_1}=\frac{500}{4}=125\ kg$$

$$F_2=ma_2=125(12)=1500\ N$$

b)

$$F=0 \ N$$