Question

find the angular acceleration of minute hand of a clock is 15cm in length​

Answer 1

Answer:

Given –Radius of tip of minute hand = r = 0 cm

= 0.1 mAs minute hand takes one hour to complete one rotation (i.e. 360o or 2 π radian)

The time period of the tip of minute hand can be given as= T=1hr = 60 min = 3600 sec

The angular velocity of any particle performing circular motion can be given as time rate of change of angular displacementW =

(dt)

(dθ)

W=

TW

(2π)

=

3600W

(2×3.14)

=1.745×10−3rad/sec

The linear velocity (v) at the tip of minute hand is

V=r×ω

V=0.1×1.745×10−3V=1.7451×0−4m/s

Explanation:

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