thuminhevc91 thuminhevc91

12-09-2022
Physics

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The velocity of a particle moving along the xaxis varies according to the expres-sion v = 40 - 5t², where vis in meters per second and this in seconds.
(A) Find the average acceleration in the time interval t = 0 to t = 2.0 s.
(B) Determine the acceleration at t = 2.0 s.

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