Question

a car runs around a curve of radius 10meter at a constant speed of 10m/s .consider the time interval for which the carcovers a curve of 120°arc

Answer 1

Answer:

2.1 sec

Explanation:

a car runs around a curve of radius 10meter at a constant speed of 10m/s .consider the time interval for which the carcovers a curve of 120°arc

Distance to be covered = (120/360) * 2 π R

= (1/3) * 2 * (22/7) * 10

= 440/21 m

Speed = 10 m/s

Time = (440/21)/10  = 44/21  =  2.1 sec