The figure shows the velocity of a particle as it travels along the x-axis.What is the direction of the acceleration at t = 0.5 s?
A) in the +x direction
B) in the -x direction
C) The acceleration is zero.

Question

The figure shows the velocity of a particle as it travels along the x-axis.What is the direction of the acceleration at t = 0.5 s? 
A) in the +x direction 
B) in the -x direction 
C) The acceleration is zero.

Quizplus · Accepted Answer

At t = 0.5s, the velocity of the particle is decreasing, which means it is moving in the negative-x direction. The acceleration is in the same direction as the change in velocity, therefore the acceleration is also in the negative-x direction. Hence, the correct answer is B.

The Figure Shows the Velocity of a Particle as It