Question

The length of hour hand of a wrist watch is 1.5 cm. Find magnitude tangential acceleration.
(Ans : 0)

Answer 1

The length of hour hand of a wrist watch is 1.5cm , r = 1.5cm = 0.015m
in case of uniform, circular motion, centripetal or angular acceleration = 0.

we know, tangential acceleration = radius of circular path × angular acceleration
= 0.015 × 0 = 0

hence, tangential acceleration = 0

Answer 2

HEY DEAR ... ✌️

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Here's , Your Answer ...

=) Given , length of hour hand of wrist watch (r) = 1.5 cm .

Now , Converting cm to m.

=) r = 1.5 cm

=) r = 0.015 m

To find :- Tangential acceleration .

We know , For circular motion , Angular momentum is zero .


Also , we know .

=) Tangential acceleration = Radius of circular path × Angular acceleration .

Now , putting the values.

=) 0.015 × 0

=) 0 ( answer)

Hence , The tangential acceleration is 0 .

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HOPE , IT HELPS ... ✌️