Rohit bought a pizza of radius 0.5m. A fly lands on the pizza and walks around the edge for a distance of 80cm. The angular displacement of the fly is
A
0.2radians
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B
0.32radians
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C
0.16radians
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D
0.6radians
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Solution
The correct option is C0.16radians According to the question, the distance travelled by the fly around the edge of the pizza is s=80cm=0.08m. The radius of the pizza is given to be r=0.5m. Using the formula for angular displacement, we get θ=sr ⇒θ=0.08m0.5m ⇒θ=0.16radians