Tag: physics

The acceleration of the system $= \left (\dfrac {m _{1} + m _{2}}{m _{1} + m _{2}}\right )g$ and hence the tension $T$ in the string is $\left (\dfrac {2m _{1}m _{2}}{m _{1} + m _{2}}\right )g$. The reading of the spring balance is $T$ (in units of force) and $\dfrac {T}{g}$ (in units of mass).

Spring balance is used to measure the weight (force acting) of the object. The working principle of the spring balance is Hooke's law.

In spring balances, the spring is used to measure the forces applied to it which helps to measure the weight of the body.

Spring balance is used to measure the weight of the object. The working principle of spring balance is Hooke's law. Since Hooke's law is valid only for elastic objects, thus spring used in the spring balance must be elastic in nature.

Weight is a vector quantity. Weight of the object refers to the force with which the object is attracted towards the earth.

Spring balance is used to measure the weight of the object. When a load is hung on the spring, it stretches and the spring's extension is proportional to the weight of the object. The working principle of the spring balance is Hooke's law  which is  $F = -kx$.

Weight of the substance is given by  $W = mg$
where $m$ is the mass of substance and $g$ is the acceleration due to gravity.
SI unit of weight is Newton represented by $N$.