Question

A body moving in circular path with uniform velocity 10m/s . Find out the time required to complete one and half round if radius of circles is 35 m.​

Answer 1

Given data :-

• A body moving in circular path with uniform velocity 10m/s.
• Radius of circular path is 35 m.

Here,

→ velocity of body ( v ) = 10 m/s

→ Radius of cicular path ( r ) = 35 m

Solution :-

First here we nee to find circumference of circular path.

→ Circumference of circular path = 2πr

→ Circumference of circular path = 2 × 22/7 × 35

→ Circumference of circular path = 2 × 22 × 5

→ Circumference of circular path = 220 m

Here, to find half path of circular path

→ Half path of circular path = ½ × 220

→ Half path of circular path = 110 m

Here, we use formula to fime time require for one round

Let, displacement = 220 m

→ velocity = displacement/time

→ 10 = 220/time

→ time = 220/10

→ time = 22 sec.

Now time require for half round

Let, displacement = 110 m

→ velocity = displacement/time

→ 10 = 110/time

→ time = 110/10

→ time = 11 sec.

Hence, time required by body to complete one and half round is 22 sec and 11 sec respectively.

{ Note :- Time required by body to complete 1 ½ round is 33 sec }