Question

a man is moving aro
und a circle or track of radius 77m calculate the displacement and distance after 4½ revolution

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Answer 1

Answer:

Distance:

2178 m

Displacement:

154m

Explanation:

Distance:

the distance traveled for one revolution is 2*π*r(the circumference or you can say the perimeter of the circle).

so for 4 and 1/2(or you can say 4.5) revolution, distance= 4.5* 2*π* r.

Value of radius is given.

so put it and get the distance.

Displacement:

As far as displacement is concerned it will be equal to the diameter.

Also take the value of pi as 22/7.