The change in momentum is the car's momentum when traveling 20 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

Question

Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,240 kg car from 0 to 20 m/s in 16 s. The change in momentum is the car's momentum when traveling 20 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

Answer 1

Since , so . With m=1240kg, v₂=20m/s, v1=0m/s and t=16s, we can get F=1550N.