1.

A min. hand of a clock is 7cm long calculate the distance covered and displacement of min. hand from 9am to9:30am

Answer»

ANSWER: distance = 77 cm and DISPLACEMENT = 14 cm

Explanation:

Distance covered = 1/2 TIMES the circumference of the CLOCK

=> 1/2 * πr² where r = radius of the circle = length of the minute hand

=> distance covered = 1/2 * 22/7 * 7 * 7 = 11 * 7 = 77 cm

Displacement = 2 * radius = 2 * 7 = 14 cm

Therefore distance = 77 cm and displacement =14 cm

Please brainlist my answer, if helpful!



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