A ball is moving in horizontal xy-plane in uniform circular motion with center at the origin. At t=0 its acceleration is 20i^ and it has same acceleration 20i^ only after 2 sec. Its angular velocity and radius of circular motion are

T=2 sec ⇒ω=2π2=π rad/s ω2r=20 π2r=20 r=20π2m

A ball is moving in horizontal xy-plane in uniform circular motion with center at the origin. At t=0 its acceleration is 20i^ and it has same acceleration 20i^ only after 2 sec. Its angular velocity and radius of circular motion are

T=2 sec ⇒ω=2π2=π rad/s ω2r=20 π2r=20 r=20π2m

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A ball is moving in horizontal $x y -$ plane in uniform circular motion with center at the origin. At $t = 0$ its acceleration is $20 \hat{i}$ and it has same acceleration $20 \hat{i}$ only after $2 s e c$ . Its angular velocity and radius of circular motion are

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$2 πrad / s; \frac{10}{π^{2}} m$

$πrad / s; \frac{10}{π^{2}} m$

$πrad / s; \frac{20}{π^{2}} m$

$2 πrad / s; \frac{20}{π^{2}} m$

answer is C.

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$T = 2 s e c \Rightarrow ω = \frac{2 π}{2} = π rad / s ω^{2} r = 20 π^{2} r = 20 r = \frac{20}{π^{2}} m$

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A ball is moving in horizontal xy-plane in uniform circular motion with center at the origin. At t=0 its acceleration is 20i^ and it has same acceleration 20i^ only after 2 sec. Its angular velocity and radius of circular motion are

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A ball is moving in horizontal $x y -$ plane in uniform circular motion with center at the origin. At $t = 0$ its acceleration is $20 \hat{i}$ and it has same acceleration $20 \hat{i}$ only after $2 s e c$ . Its angular velocity and radius of circular motion are