In an experiment with a beam balance an unkno | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

$16 \ell_{1}=\mathrm{m} \ell_{2} \Rightarrow \mathrm{m}=\frac{16 \ell_{1}}{\ell_{2}} \Rightarrow \mathrm{m} \ell_{1}=4 \ell_{2} \Rightarrow \mathrm{m}

Vedclass · Accepted Answer

$8$

Vedclass · Answer

$16 \ell_{1}=\mathrm{m} \ell_{2} \Rightarrow \mathrm{m}=\frac{16 \ell_{1}}{\ell_{2}} \Rightarrow \mathrm{m} \ell_{1}=4 \ell_{2} \Rightarrow \mathrm{m}=\frac{4 \ell_{2}}{\ell_{1}}$

$	herefore \frac{16 \ell_{1}}{\ell_{2}}=\frac{4 \ell_{2}}{\ell_{1}} \Rightarrow \ell_{1}=\frac{\ell_{2}}{2} 	herefore \mathrm{m}=\frac{4}{\ell_{1}} 	imes 2 \ell_{1}=8 \mathrm{kg}$

In an experiment with a beam balance an unknown mass $m$ is balanced by two known masses of $16\,kg$ and $4\,kg$ as shown in figure. The value of the unknown mass $m$ is ....... $kg$

Similar Questions

Four spheres each of diameter $2a$ and mass $M$ are placed with their centres on the four corners of a square of side $b$. Then the moment of inertia of the system about an axis along one of the sides of the square is

The force $7\hat i + 3\hat j - 5\hat k$ acts on a particle whose position vector is $\hat i - \hat j + \hat k$. What is the torque of a given force about the origin ?

Two disc one of density $7.2\, g/cm^3$ and the other of density $8.9\, g/cm^3$ are of same mass and thickness. Their moments of inertia are in the ratio

Two loops $P$ and $Q$ are made from a uniform wire. The radii of $P$ and $Q$ are $r_1$ and $r_2$ respectively, and their moments of inertia are $I_1$ and $I_2$ respectively. If $I_2/I_1=4$ then $\frac{{{r_2}}}{{{r_1}}}$ equals

Three thin rods each of length $L$ and mass $M$ are placed along $x, y$ and $z-$ axes is such a way that one end of each of the rods is at the origin. The moment of inertia of this system about $z-$ axis is