Exam-style question
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What is the centripetal force acting on a vehicle moving in a circular path with a radius of 50 m and a speed of 20 m/s?.
- A.400 N
- B.800 N
- C.200 N
- D.100 N
Model answer
What a good answer should say
- 800 N
Explanation
Why this works
The formula for centripetal force is F = (m * v^2) / r. Here, we need to find the mass first.
Assuming a mass of 100 kg, F = (100 kg * (20 m/s)^2) / 50 m = 800 N. Thus, the centripetal force is 800 N.
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