Question

an insect moves along a circular path of radius 10 cm with a constant speed it takes 1 minute to move from a point on the path to the diametrically opposite point . Find a) the distance covered b) the displacement c) The average velocity

Answer 1

(a) distance= 1/2 circumference
= 2πr/2
=πr
=3.14×10
=31.4cm or 0.314 m

(b) displacement= diameter= 0.2 m = 20cm
(c)avg. velocity= displacement/time
= 20cm/ min
(OR)
0.2/60 = 0.0033 m/s