Which option is the most accurate description of speed?
4.Five seconds elapsed as the ball rolled five meters north.
Answer:
3. It took 5 seconds for the ball to be displaced 5 meters from the marker
Explanation:
Speed is a scalar quantity, it shows how fast an object is moving, it doesn’t show direction of movement of the body in motion i.e the rate at which an object changes its position.
The formula for speed is distance divided by time. The second option gives us the distance covered and the time taken.