When a clock reads 6 seconds a cart’s velocity in the negative x direction is 2

Question

When a clock reads 6 seconds a cart’s velocity in the negative x direction is 2 m/s. When the clock reads 9 seconds, the cart’s velocity in the positive x direction is 3 m/s. What is the magnitude (in m/s2) of the acceleration of the cart?

An object traveling in the negative direction and accelerating in the negative direction will slow down.
True
False

Two carts are traveling at the same speed. The first cart's speed doubles in a specified time. The second cart's speed doubles in twice that time. The acceleration of the first cart is greater than the acceleration of the second cart.
True or False

Explanation / Answer

acc = v/t = 5 m/s / 3 s = 5/3 m/s2 = 1.6

The magnitude is 1.6

False, it will speed up because direction and acceleration are in line and acceleration is increasing.

True, because acceleration is the rate of change of velocity, and cart one speeds up faster than cart two.

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