Question

A cyclist get round a circular track of diameter 105m in 5 min. Calculate his speed and velocity at the end of 7 min.30 sec.​

Answer 1

Answer:

1.10 m/s

Explanation:

Speed , V = 2πr / t = 2 × 22 / 7 × 105 / 2 × 300 = 1.10 m/s.

Answer 2

Explanation:

distance =πd=105*3.14

=>329.7m

then time=5min

=300sec

speed=329.7/300

=1.09m/s

the in 7 min 30 sec means one and half revolution

distance =πd+2πr

=>493.95m

time =7min 30 sec =>450 sec

speed=493.95/450

=1.09m/s

body is moving in uniform motion