Question

Solution

Correct option is

Accelerated

If the train is at rest or in uniform motion, its acceleration is zero. The only acceleration acting on the bob is the acceleration due to gravity. Hence the string will be vertical. Hence choice (a) and (d) are not possible. The string in inclined along the direction of the result of the acceleration a of train acting horizontally and the acceleration due to gravity g acting vertically. Vector a, is the resultant of vectors a and g(use parallelogram law). Hence, the string is inclined opposite to the direction of the acceleration of the train. SIMILAR QUESTIONS

Q1

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Q2

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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Q10

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