Question

The x and y co-ordinates of a particle at any time t are
given by x = 7t+ 4t and y = 5t
where x and y are in m and t in s. The acceleration of the
particle at 5 s is
(a) zero
(6) 8 m s-2
(c) 20 m s 2
(d) 40 m 2​

Answer 1

Answer:

Explanation:

U have made a mistake in the questions the x=7t+4t^2

Solve by differciation

As in equation of acceleration there is no time therefore it is independent of time