Question

The velocity (v) of a particle moving along x-axis
varies with its position x as shown in figure. The
acceleration (a) of particle varies with position (x) as
:
(1) a2 = x + 3
(2) a = 2x2 + 4
(3) 2a = 3x + 5
(4) a = 4x - 8​

Answer 1

Answer: d

Explanation:

As x increases velocity decrease

So a and v must be opposite to each other

So at t= 0 a is - ve

That's why velocity in +x direction is decreasing