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6. | A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction with an acceleration a, then the time period is given by T=2π√(l/g), where g is equal to? | |
A. | g | |
B. | g-a | |
C. | g+a | |
D. | √(g2+a2 ) | |
Answer: Option D | |
Explanation: | |
As g and a are acting along perpendicular directions, the effective value of acceleration due to gravity is |
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