If a particle is moving along straight line with increasing speed, then

Question

If a particle is moving along straight line with increasing speed, then (A) Its acceleration is negative (B) Its acceleration may be decreasing (C) Its acceleration is positive (D) Both (2) (3)

Tardigrade Admin · Accepted Answer

If the speed of body is increasing then acceleration is in the direction of velocity. It may be positive or negative. If acceleration is in negative direction then acceleration is increasing but in negative side, so it will be called as decreasing.

Q. If a particle is moving along straight line with increasing speed, then

Its acceleration is negative

Its acceleration may be decreasing

Its acceleration is positive

Both (2) & (3)

If the speed of body is increasing then acceleration is in the direction of velocity. It may be positive or negative. If acceleration is in negative direction then acceleration is increasing but in negative side, so it will be called as decreasing.