Distance and Displacement

Q.

A particle is executing uniform circular motion in a path of radius 3 m with a frequency of 1 revolution per minute. By how much does the total distance traveled by the particle in 70 seconds exceed the magnitude of its displacement over the same time interval?

1. 0

2. $(\pi -3)m$

3. $7\pi m$

4. $(7\pi -3)m$

Q. What will be the length of the longest wafer roll that can fit completely inside the given chocolate box?

1. 14 units
2. 24 units
3. 28 units
4. 12 units