Question

Sam takes 500 seconds to travel 300 meters from home to work. During this trip, he stops at a red light, and his speedometer reads 0 m/s. What is Sam's instantaneous speed at the red light?

a) 2.00 m/s
b) 1.50 m/s
c) 0.60 m/s
d) 0.00 m/s

Answer 1

Sam's instantaneous speed at the red light, indicated by a speedometer reading of 0 m/s, is 0.00 m/s, meaning he is at rest at that particular moment.

Step-by-step explanation:

The student has asked about Sam's instantaneous speed at the red light during his trip from home to work. Instantaneous speed is the speed at a specific instant or moment in time, as opposed to average speed over a time interval. Since Sam's speedometer reads 0 m/s at the red light, his instantaneous speed at that moment is 0.00 m/s. This means he is momentarily at rest when stopped at the red light.