Question

HELP || A delivery van has a mass of 7000 kg and a kinetic energy of 31,500 J. What is the speed? A) 4.5 m/s B) 2.1 m/s C) 3 m/s D) 9 m/s

Answer 1

Answer:

A - 4.5 m/s

Explanation:

31,500/7,000= 4.5

Answer 2

Answer:

the speed is 3m/s

Explanation:

below is the working