Question

explain the weight ​

Answer 1

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HERE IS YOUR ANSWER:--------

THE FORCE WITH WHICH A BODY IS ATTRACTED TO EARTH OR ANOTHER CELESTIAL BODY AND WHICH IS EQUAL TO THE PRODUCT OF THE OBJECT'S MASS AND THE ACCELERATION DUE TO GRAVITY.

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Answer 2

$\huge {\bf{\red{WEIGHT}}}$

We know that the earth attracts every object towards its centre with a force which depends on the mass of the body and acceleration due to gravity at that place. Thus, weight may be defined as

$<tt>"The force with which a body is attracted by the earth is known as the weight of the body."</tt>$

When the earth attracts a body with a gravitational force, the body accelerates towards the earth with acceleration due to gravity (g).

We know that force with which a body of mass 'm' is 505 attracted by the earth is

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:F= ma$

${\textrm{Since,}}\:\:\:\:\:\:\:{\textit{a=g}}$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{\textrm{F=}}{\textit{mg}}$

By definition, this force is known as the weight of the body W

$W=m×g$

Now, calculate the weight of 1 kilogram mass

We know that

$W=m×g$

$=1 \:kg\: × 9,8\: m\: s^2$

By definition, 1 kg x 1 m $s^{-2}$ is equal to 1 newton so

W = 9.8 newton (9.8 N)

Thus, the weight of 1 kg mass is 9.8 newton. This means that the force acting on a mass of 1 kg at the surface of the earth is 9.8 newton.

Weight is measured in the same unit as force, so the SI unit of weight is also newton (N). Weight is a vector quantity and hence possesses both magnitude and direction. Weight of an object can also be measured with a spring balance (fig. 3.14).