an athlete runs in a circular track of radius 600m .if he reaches diagonally opposite side in 1 minute then what is his average
Answers
Correct Question :
An athlete runs in a circular track of radius 600m. If he reaches diagonally opposite side in 1 minute then what is his average velocity?
Given :
Radius of circular path = 600m
Athlete completes half revolution in 1 minute.
To Find :
Average velocity of the athlete.
Solution :
❖ Average velocity of object is defined as the ratio of displacement to the time taken.
- It is a vector quantity having both magnitude as well as direction.
- SI unit : m/s
- Dimension formula : [L¹T‾¹]
After completing half revolution of circle, athlete will be at diametrically opposite to the initial position
Hence displacement of athlete is 2R.
➙ Vav = displacement / time
- Time = 1 min = 60 s
➙ Vav = 2R / t
➙ Vav = (2 × 600) / 60
➙ Vav = 2 × 10
➙ Vav = 20 m/s
An athlete runs in a circular track of radius 600m. If he reaches diagonally opposite side in 1 minute then what is his average velocity?
Radius of circular path = 600m
Athlete completes half revolution in 1 minute.
Average velocity
SI unit : m/s
Dimension formula : [L¹T‾¹]
After completing half revolution of circle, athlete will be at diametrically opposite to the initial position.
Hence displacement of athlete is 2R.
➙ Vav = displacement / time
Time = 1 min = 60 s
➙ Vav = 2R / t
➙ Vav = (2 × 600) / 60
➙ Vav = 2 × 10
➙ Vav = 20 m/s