Question :
A car is moving in horizontal circular track of radius 10 m, with a constant speed of 36 km/hour. A simple pendulum is suspended from the roof of the car. If the length of the simple pendulum is 1 m, what is the angle made by the string with the track?
1. 60°
2. 45°
3. 90°
4. 30°
Answer :
2 - 45°
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