Question

A cyclist completes half round of a circle track of radius 420 meters in 3 minutes. What will its velocity be?​

Answer 1

Answer:

so here you are asking about velocity which is a vector quantity

so, the formula for velocity will be.

velocity=displacement/time

here,

given radius of the circle is=420m

so, the diameter will be =840m

and diameter will be equal to displacement as, displacement is the shortest distance between two points and here diameter is the shortest distance.

so, v=840/180

=4.667m/s