An insect trapped in a circular groove of radius 12 cm moves along
Answers
Explanation:
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Here is your answer
The insect can move only up-to a certain limit
Let assume that the groove be the centre
Then the insect can move another the circumference of the circle
Circumference =2πr
= 2*22/7*12
= 2*3.14*12
= 6.28*12
= 75.36 cm
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Answer:
Solution :
Her, T=100/7s,r=12cmT=100/7s,r=12cm
(a) Angular speed , ω=2πT=(2×22/7(100/7)ω=2πT=(2×22/7(100/7) ltbrltgt =0.44rad/s=0.44rad/s
Linear speed, v=rω12×0.44v=rω12×0.44
=5.3cms−1=5.3cms-1
(b) The given motion is a uniform circular motion. Here the direction of velocity id along the tangent to the circle at every point. The acceleration in this motion is centripetal acceleration. It is alwys directed towards the centre of the circle. Since this direction changes therfore, the acceleration here is not a constant vector. The magnitude of acceleration is _(c) =omega ^(2) =(0.44 )^(2) xx 12 2.3 cm s^(2)`.