Ask Question
10 August, 15:20

A child pushes a toy car down a hill. After 5 seconds, the car has a kinetic energy of 115 J and a gravitational potential energy of 30 J. What is the car's mechanical energy at that time?

A) 3.9 J

B) 85 J

C) 115 J

D) 145 J

+1
Answers (1)
  1. 10 August, 15:46
    0
    D) 145 J

    Explanation:

    Mechanical energy = kinetic energy + potential energy

    ME = KE + PE

    ME = 115 J + 30 J

    ME = 145 J
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A child pushes a toy car down a hill. After 5 seconds, the car has a kinetic energy of 115 J and a gravitational potential energy of 30 J. ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers