Physics, asked by royalpirate6897, 1 year ago

An athlete completes circular track of radius 70 m in 20 seconds what will be average velocity

Answers

Answered by fatemaosurti
40

0 as d/t =0/20 =0 because avg velocity is total displacement divide by total time

Answered by bharathparasad577
0

Answer:

Concept:

The change in position or displacement (Δx) divided by the time intervals (Δt) during which the displacement happens is the definition of average velocity. Based on the direction of the displacement, the average velocity might either be positive or negative. Meters per second (m/s or ms^{-1}) is the SI measure for average velocity.

Explanation:

Given:

An athlete completes a circular track of a radius 70 m in 20 seconds

Radius = 70m

Time = 20 seconds
Find:

What will be average velocity
Solution:

The abbreviation for meter is m

velocity = distance/time

The distance the athlete travels is the circumference of the track.

The circumference of a circle is calculated using the following formula.

          $C=2 \pi r$

          $C=2 \times \pi \times 70 \mathrm{~m}=439.8 \mathrm{~m}$

Calculate the average velocity.

      $$\mathrm{v}=439.8 \mathrm{~m} / 20 \mathrm{~s}=21.99 \mathrm{~m} / \mathrm{s}$$

Average velocity = 21.99 m/s

#SPJ3

Similar questions