Question

9 A ball trapped in a circular path of Radius 10cm moves
steadily and completes 10 revolutions in 100seconds What
is the angulas velocity and what is the lineal velocity
of its motion ? Is the acceleration vector is a constant
vector​

Answer 1

Angular velocity is 0.1 and lineal velocity 0.2

Answer 2

Given:

R=10cm

10 rev, in 100 sec,

Explanation:

10rev in 100 sec,

i.e. 0.1 rev in 1 sec, which is the frequency.

so frequency is 0.1 [f=0.1 $s^{-1}$ ]

angular velocity ω=2πf = 2π × 0.1 = 0.2π

linear velocity = angular velocity × radius = 0.2π × 10 = 2π

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