Physics, asked by kanhaiya8704, 1 year ago

The minute hand of a clock is 7 cm long. Find displacement and distance by it from 9:am to 9:30 am

Answers

Answered by Akv2
196
DISPLACEMENT = STRAIGHT LINE FROM INITIAL POSITION TO FINAL POSITION.

WE KNOW THAT FROM 9 A.M. TO 9:30 A.M. THERE IS AN ANGLE OF 180 DEGREE WHICH FORMS A STRAIGHT LINE THAT CAN BE SAID AS A DIAMETER OF CIRCLE WHOSE RADIUS IS 7 CM LONG.

SO,

DISPLACEMENT = DIAMETER = 7×2 = 14 CM

DISTANCE IS THE ACTUAL LENGTH COVERED BY AN OBJECT. IT CAN BE CIRCULAR PATH, CURVED PATH, STRAIGHT LINE ETC.

FROM 9 A.M. TO 9:30 A.M. ANGLE BETWEEN ANGLE MADE IS EQUAL 180°.

CIRCUMFERENCE OF CIRCLE OF RADIUS 7 CM = 2 X 22 / 7 X 7 = 44 CM

44 / 2 = 22 CM.

DISTANCE COVERED BY THE MINUTE HAND FROM 9 A.M. TO 9:30 A.M. IS 22 CM.

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Answered by genius9414
57

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