Question

the velocity - time table represents the motion of a motorcycle.
what is the direction of the motorcycles acceleration?
direction = -- (tap direction to change.)
check answer

Explanation:

Step1: Calculate acceleration

Acceleration \(a=\frac{\Delta v}{\Delta t}\). Take two points, say \(t_1 = 0s\), \(v_1=20m/s\) (left) and \(t_2 = 1s\), \(v_2 = 16m/s\) (left). \(\Delta v=v_2 - v_1=16 - 20=- 4m/s\), \(\Delta t=t_2 - t_1=1 - 0 = 1s\). So \(a=\frac{-4}{1}=-4m/s^{2}\).

Step2: Determine direction

The negative sign indicates that the acceleration is in the opposite direction of the initial velocity. Since the initial velocity is to the left, the acceleration is to the right.

Answer:

right