Question

A 3,150-kg truck accelerates from 4.2 m/s to 7.8 m/s in 14 s. What is the average force needed for the truck to accelerate under these conditions?

Answer 1

first of all find the acceleration which would come 3.6/14 now use the formula f=ma mass is 3150 and acceleration is 3.6/14 the force required will be 810 kgm