an athlete runs along a circular track of radius 100m. calculate the displacement of the athlete and the distance travelled by him when he covers 3/4 th of the track
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GIVEN:
an athlete runs along a circular track of radius 100m.
TO FIND:
The displacement of the athlete and the distance travelled
SOLUTION:
Theta=90 degree
= 90×π/180
= π/2 radian
Arc length = theta × r
= π/2 × 100
=157.08 = Displacement.
Distance = 2πr - Displacement
= ( 2×3.14×100) - 157.08
=628 - 157.08
= 470.92
ANSWERS:
Displacement = 157.08
Distance travelled = 470.92
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