Question

if an object completes one rotation in 6 minutes find the distance displacement average speed and average velocity in its journey of 63 Si radius circle track 210​

Answer 1

Explanation:

given

total time taken 63 minutes

in a rotation time = 6 minutes

so now total rotation = 63/6

= 10.5

in a rotation distance which is equal to the 2πr

r = 210 m

2πr = 2× 22/7 × 210

= 1320 m

total distance = 1320×10.5

= 13860 m

displacement = distance between initial and final point which is equal to the diameter because last rotation is half

so displacement = 2×210

= 420m

speed = 13860/63

= 220 m/ min

velocity = 420/63

= 6.66 m/ min