Ask Question
25 July, 03:20

What is the magnitude of the average force required to stop an 1200 kg car in 9.0 s if the car is traveling at 80 km/h? Express your answer using two significant figures.

+2
Answers (1)
  1. 25 July, 07:16
    0
    Answer: 2960N

    Explanation:

    According to newtons first law of motion, force = mass * acceleration

    To get acceleration,

    Acceleration = velocity/time

    Velocity = 80km/hr

    Converting the velocity to m/s

    80*1000/1*3600

    velocity = 22.2m/s

    Time = 9secs

    Acceleration=22.2/9

    Acceleration = 2.47m/s²

    The get the force

    F = 1200*2.47

    F = 2960N
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What is the magnitude of the average force required to stop an 1200 kg car in 9.0 s if the car is traveling at 80 km/h? Express your answer ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers