Question

A car moves along a circular track of radius 14m. It completes 1 revolution in 20
seconds.

Calculate the distance the car covers if it travels for duration of 90 seconds.

(a) 300 m
(b) 400 m
(c) 308 m
(d) 396 m​

Answer 1

Answer:

396m

Explanation:

r=14m

circumference=2pir

== 2×22÷7×14

==2×22×2

==88m

88m in 20sec.

therefore __m in 90sec.

88×90÷20(alternendo)

answer=396m

hope it helps