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Particle start moving from rest with an acc. a along positive x axis for time t. After time t it reverse its direction of acc. keeping the magnitude same. After what time from start it will return its initial position.

Particle start moving from rest with an acc. a along positive x axis for time t. After time t it reverse its direction of acc. keeping the magnitude same. After what time from start it will return its initial position.

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3 Answers

Anchit Jain
19 Points
10 years ago

It will take t(21/2 +2) seconds to come back to its initial position

madhuri krishna
15 Points
10 years ago

meenakshi,

          at time t,itsfinal velosity is 'at',after change in direction becomes initial.find the distance travelled.let returning time t' . substuting in 2 equation of motion get a quadratic equation in t &t' . find t' &add t .ans-t(2+21/2)

madhuri krishna
15 Points
10 years ago

 

meenakshi,

    at time t,its final velosity is 'at',after change in direction itbecomes initialvelocity.find the distance travelled.let returning time t' . substuting in 2nd equation of motion get a quadratic equation in t &t' . find t' &add t .ans-t(2+21/2)

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