Question

A player completes
R radius circle in 140 sec
find påthlength​

Answer 1

Answer:

given:

radius=R

T=40 sec

t=2 min 20 sec

=(60(2)+20)sec

=140 sec

no.of rounds=140 sec÷40 sec

=14÷4

=3.5

but displacement is only 0.5 circle,as for every complete round,displacement is 0.

circumference÷2

=displacement

=2r

=2R

Answer:

displacement will be 2r because a player completes a circular track in 40s

in 140s he complete 3.5 rounds

So, he's displacement will be 2r.