A force acting on a particle varies with X as shown- Initial speed of particle is zero- Which of the following is correct-A- Speed increases from 0 to 4 and then decreasesB- Speed is maximum at x -6C- Speed is maximum at x -7D- Speed is maximum at x -4

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Standard VII

Physics

Displacement

A force actin...

Question

A force acting on a particle varies with $x$ as shown. Initial speed of particle is zero. Which of the following is correct?

Speed increases from 0 to 4 and then decreases

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Speed is maximum at

x = 6

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Speed is maximum at

x = 7

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Speed is maximum at

x = 4

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Solution

The correct option is C Speed is maximum at $x = 7$
Work done is positive, so KE increases till $x = 7$

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A force acting on a particle varies with x as shown. Initial speed of particle is zero. Which of the following is correct?

The correct option is C Speed is maximum at x=7Work done is positive, so KE increases till x=7

A force acting on a particle varies with $x$ as shown. Initial speed of particle is zero. Which of the following is correct?

The correct option is C Speed is maximum at $x = 7$
Work done is positive, so KE increases till $x = 7$