Question

A motorist completes one revolution in a circular track of radius 100m in 2 minutes His average speed is​

Answer 1

Answer:

5.23333.... m/s

Explanation:

circumference: 2πr

=2 * 3.14 * 100

= 628 metres

time=2 min

=120 sec

Average velocity: 628/120

=5.2333... m/s

Hope i didn't make any mistake, have a great day! :DDDD

Answer 2

GiveN :

• Radius = 100 m
• Time interval = 2 mins = 120 s

To FinD :

• Average speed of Motorist

SolutioN :

⇒ Distance = 2πr

⇒ Distance = 2 * 22/7 * 100

⇒ Distance = (44 * 100)/7

⇒ Distance = 4400/7

⇒ Distance = 628.57 m

________________________

⇒ Speed = Distance/Time

⇒ Speed = 628.57/120

⇒ Speed = 5.23 m/s