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Question: The x and y coordinates of a particle at any time t are given by x = 2t + 4t<sup>2</sup> and y = 5t,...

The x and y coordinates of a particle at any time t are given by x = 2t + 4t2 and y = 5t, where x and y are in meter and t in second. The acceleration of the particle at t =5 s is –

A

40 ms–2

B

20 ms–2

C

8 ms–2

D

Zero

Answer

8 ms–2