Question

Question 1: A car accelerates from rest, and travels 400 m in 3.5 seconds. If

the net force on the car is 12,000 N what is the mass of the car?

Answer 1

Step-by-step explanation:

u= 0 ( because car start rest)

v=400

t=3.5

v-u/t

400-0/3.5

400/3.5

114m/s

f= 12000

f=ma

12000=m*114

m=12000/114

105 kg approx