Question

a car weighing 2000kg is accelerated from rest and covers a distance of 40m in 6 seconds. Calculate the work done

Answer 1

the work done on car would be 480000 j

Answer 2

$s = ut + \frac{1}{2}a t ^{2} \\ a = \frac{40}{18 } \\ w = fs \\ w = 2000 \times \frac{40}{18} \times 40 = 177777.8j$
hence this is the required answer