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## At a certain time a particle had a speed of 46 m/s in the positive x direction, and 9.1 s later its speed was 67 m/s in the opposite directi

Question

At a certain time a particle had a speed of 46 m/s in the positive x direction, and 9.1 s later its speed was 67 m/s in the opposite direction. What was the average acceleration of the particle during this 9.1 s interval

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Physics
6 months
2021-08-04T13:06:45+00:00
2021-08-04T13:06:45+00:00 1 Answers
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## Answers ( )

Answer:The average acceleration of the particle during this 9.1 s interval is .Explanation:The expression for the average acceleration of the particle is as follows;Here, is the average acceleration, v is the final speed, u is the initial speed, t is the initial time and t’ is the final time.It is given in the problem that at a certain time a particle had a speed of 46 m/s in the positive x-direction, and 9.1 s later its speed was 67 m/s in the opposite direction.

Put , , t= 0 and t’=9.1 s in the above expression.

Therefore, the average acceleration of the particle during this 9.1 s interval is .