1.

The length of the seconds hand of a watch is 10 mm. What is the change in the angular speed of thewatch after 15 seconds(10z/2) ms^-1(e) (20/a) mms 1Zero10/2 mms

Answer»

it's answer is zero as the question has asked only speed not velocity and speed is scalar quantity

the change in the average speed will be zero as it is a scalar quantity



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