A roller coaster is moving with 30 ms^-1 on a circular track of radius 30m. The net mass of coaster + passengers is 'm' the centripetal force acting on it is?
Everyday Science / Physics — Multiple-choice practice
- A. 30m
- B. m
- C. 900m
- D. 450 m
Correct answer
30m
Explanation
Explanation The centripetal force (F) acting on the roller coaster is given by the formula: F = (m × v^2) / r Where: m = net mass of coaster + passengers v = velocity = 30 m/s r = radius of the circular track = 30 m Substituting the values, we get: F = (m × (30)^2) / 30 = (m × 900) / 30 = 900m / 30 = 900m So, the centripetal force acting on the roller coaster is 900m.
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