A particle performs a uniform circular motion in a circle of radius 10 cm . What is its centripetal acceleration if it takes 10 seconds to complete 5 revolutions ?
A
`2.5 pi ^(2)cm/s^(2)`
B
`5pi ^(2) cm//s^(2)`
C
`10 pi^(2) cm//s^(2)`
D
`20 pi ^(2) cm//s^(2)`
Text Solution
Verified by Experts
The correct Answer is:
C
C. P accleration `= r omega_(2)= r. (4pi ^(2))/(T^(2))` ` = 10xx(4pi ^(2))/(4)= 10 pi ^(2) cm//s^(2)`
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