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 = 0.5 s, the velocity of the particle is decreasing (it is moving from positive to negative values on the x-axis), so the acceleration must be in the opposite direction, which is the negative x-direction. Therefore, the correct answer is B) in the -x direction.

The Figure Shows the Velocity of a Particle as It