Question

speed, velocity & acceleration
abduleebbar bungpoms
emily is about to gain
2 m/s of speed every
second as she heads
downhill
this is a measure of emilys
acceleration because it
shows how much speed she
picks up each second and in a
particular direction.
multiple - choice question
is emily experiencing a positive acceleration or a negative
acceleration?
positive
negative
rewatch

Explanation:

Step1: Recall the definition of acceleration

Acceleration is the rate of change of velocity. If the velocity is increasing, the acceleration is positive. If the velocity is decreasing, the acceleration is negative.

Step2: Analyze Emily's situation

Emily gains \(2\ m/s\) of speed every second. Since her speed (magnitude of velocity) is increasing, her acceleration is positive.

Answer:

positive