Question

- The diameter of a wheel is 0.70 m. Find the distance covered by it in 500 r.
wheel takes 5 minutes to make 500 revolutions, find its speed in (a) m/s and​

Answer 1

formula is 2πr

an the whee will cover 2πr distance in a single rotation

which is 2×(22/7)×(0.07/2)m= 0.2198 m

then in 500 rotation it will cover (0.2198×500)m

= 109.9 m

now.

if it takes 5 min for 500 rotation..then

it's speed was- {109.9/(5×60)}m/s = {109.9/300}m/s

= 0.366 m/s.