A body travells along the circular path of radius 70m after travelling half a revolution in 20sec find avrage velocity and avrage speed
C=2πr
C/2=πr=70π
Velocity of the body=70π meters/20 seconds=7π/2 meters/sec. ☺☺☺☺
To find the average velocity and average speed, we need to determine the distance traveled and the time taken.
Given:
Radius of the circular path (r) = 70 m
Time taken (t) = 20 sec
Number of revolutions (n) = 1/2 (as half a revolution is traveled)
To find the distance traveled, we can use the formula:
Distance (d) = 2πr * n
Substituting the values:
d = 2 * π * 70 * (1/2)
d = π * 70
Now we have the distance traveled, and we know the time taken. We can calculate the average velocity using the formula:
Average Velocity = Total Displacement / Total Time Taken
Since it is a circular path, the total displacement is equal to zero. Therefore, the average velocity will also be zero.
Now let's calculate the average speed:
Average Speed = Total Distance Traveled / Total Time Taken
Substituting the values:
Average Speed = (π * 70) / 20
Hence, the average velocity is zero, and the average speed is (π * 70) / 20.