1. Total distance covered = 400 meters/circuit * 4 circuits = 1600 meters
2. Displacement is the shortest distance between the initial and final position. Since Jamal ended up where he started, his displacement is 0 meters.
3. Speed = Distance / Time = 1600 meters / 800 seconds = 2 m/s
4. Velocity is a vector quantity and is defined as the rate of change of displacement. Since his displacement is 0 meters, his velocity is also 0 m/s.
Jamal is preparing for the marathon in November. The length of one full circuit of the track is 400 meters. Jamal runs around the track 4 times at a constant speed. 1. How much distance has he gone? 2. What was his displacement? 3. If it took him 800 seconds, what was his speed? 4. What was his velocity?
1 answer