Question

At any instant, the velocity and acceleration of a particle moving along a straight line are $v$ and $a$. The speed of the particle is increasing if

• A. v > 0, a > 0
• B. v < 0, a > 0
• C. v > 0, a < 0
• D. v > 0, a = 0

Answer 1

Answer: (A)

For increasing speed both velocity (v) and acceleration (a) are in the same direction.