Question

A toy car is moving on a circular track which has a

radius of 5m. If toy car completes quarter of the track

in 8 sec. find the speed of the toy on that

track.(assume that toy is running at a uniform speed).​

Answer 1

Answer:

Step-by-step explanation:

Given:  radius of circular track:  5m

            time:  8 sec

            distance:  one quarter of the circular track

Solution:

Find the distance:

circle radius:  5m

Circumference (total distance of track):  (2)(Pi)(r)

C = 2(3.14)(5m)

   = 31.4m

d = one quarter or one-fourth of 31.4m

d= 0.25 (31.4m)

d = 7.85m

speed = distance / time

speed = 7.85m / 8 sec

speed = 0.98m/sec