Question

if mass of an iron block is 70kg what will be its weight? and what will be the mass of a pencil weighing 0.045N​

Answer 1

Explanation:

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Answer 2

Explanation:

FORCE = MASS * ACCELERATION. (ON EARTH THE VALUE OF ACCELATION DUE TO GRAVITY (g)=9.8 m/s^2 and force = weight )

This weight of 70 kg mass = 70 *9.8 = 686 N

Also mass of pencil :

0.045= mass * 9.8

Mass= 0.045/9.8= 0.00460 kg

=4.6 gm