Question

Raju completes one round of a circular track of diameter 200m in 30s. Calculate

a. The distance travelled by Raju
b. The magnitude of displacement travelled by Raju at the end of 30 s.

Answer 1

Step-by-step explanation:

Given:

Diameter = 200 m

Radius, r = 200/2 = 100 m

Time taken, t = 30 seconds

Formula to be used:

Distance traveled, = circumference of circle = 2πr

Answer:

Putting all the values, we get

Distance traveled = 2πr

• Distance traveled = 2 × 22/7 × 100

• Distance traveled = 4400/7

• Distance traveled = 628.57 m

So, the distance traveled by Raju is 628.57 m.

Now, magnitude of the displacement,

At the end of 30 seconds, Raju will come to starting position or initial position, so displacement is zero.