Question

What is the kinetic energy of a 50-kg child running to catch the school bus at

2 m/s?
O A. J
O B. 25 J
O C. 100J
O D. 200

Answer 1

Answer:100J

Step-by-step explanation:

Answer 2

Option C

100 J

Step-by-step explanation:

Kinetic energy, KE is given by

`KE=0.5mv^(2)` where m is the mass and v is the velocity

Substituting 50 Kg for mass, m and 2 m/s for velocity v then we obtain

`KE=0.5*50*2^(2)=100 J`

Therefore, the child's kinetic energy is equivalent to 100 J