MHT CET 2025 Physics question
A pendulum bob has a speed 4 m/s at its lowest position. The pendulum is 1 m long. When the length of the string makes an angle of 60° with the vertical, the speed of the bob at that position is (acceleration due to gravity, , )
Answer: (C)
Solution
Use conservation of mechanical energy between the lowest point and the point where the string makes with the vertical. The height gained is m. Then , so $ =
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