Question

e-Medical : Physics
The x and y coordinates of the particle at any time
are x = 5t - 2+2 and y = 10t respectively, where
x and y are in meters and t in seconds. The
acceleration of the particle at t = 2s is :-
(1) 5 m/s2
(2) – 4 m/s
(3) - 8 m/s2
(4) 0​

Answer 1

The velocity of a particle moving in positive x-axis

is according to relation v = √4x. If at t = 0

particle is at x = 0, then the velocity and

acceleration at t = 2s are given as

(1) 4 m/s, 4 m/s2

(2) 2 m/s, 2 m/s2

(3) 2 m/s, 4 m/s2 ✔️✔️✔️

(4) 4 m/s, 2 m/s2