Question

a body meves in a circular path of radius 20 cm. if it completes two and half revolution along a circular path then find distance and displacement of the body​

Answer 1

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Explanation:

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Answer 2

$\bf\huge\underline{\underline{ Given :- }}$

• radius of circular path = 20 cm

• it completes two and half revolution

$\bf\huge\underline{\underline{ To \: Find:- }}$

• distance

• Displacement

$\bf\huge\underline{\underline{ Answer :- }}$

• Circumference of circle = 2πr

• $\red{\implies}$ 1 revolution = 2πr

• $\red{\implies}$ 1 revolution = 2 × 3.14 × 20 cm

• $\red{\implies}$ 1 revolution = 125.6 cm

• 2 Revolution = 251.2 cm

• half revolution = 62.8 cm

$\rule{10cm}{0.05cm}$

• $\red{\implies}$ total distance = 251.2 + 62.8

• total distance = 314 cm

$\rule{10cm}{0.05cm}$

• displacement = 2r

• 2r = 2 × 20 = 40 cm