A high-speed railway car goes around a flat, horizontal circle of radius 480 m at a constant speed. The magnitudes of the horizontal and vertical components of the force of the car on a 55.0 kg passenger are 211 N and 539 N, respectively. (a) What is the magnitude of the net force (of all the forces) on the passenger? (b) What is the speed of the car?

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Asked Oct 5, 2019
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A high-speed railway car goes around a flat, horizontal circle of radius 480 m at a constant speed. The magnitudes of the horizontal and vertical components of the force of the car on a 55.0 kg passenger are 211 N and 539 N, respectively. (a) What is the magnitude of the net force (of all the forces) on the passenger? (b) What is the speed of the car?

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Expert Answer

Step 1

(a)

Vertical component of force is equal and opposite to normal force. Hence, they cancel each other. The net force is,

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F 211N et

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Step 2

(b)

Speed of the car is ...

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R FR (211N)(480m 55.0kg - 42.91m/s

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