Two blocks of mass 2 ,kg and 4 kg are accelerated with same acceleration by a force 10 ,N as shown i

English

Gujarati

Hindi

4-1.Newton's Laws of Motion

medium

Two blocks of mass $2 \,kg$ and $4 kg$ are accelerated with same acceleration by a force $10 \,N$ as shown in figure on a smooth horizontal surface. Then the spring force between the two blocks will be .......... $N$ (spring is massless)

A$5$

B$10$

C$\frac{10}{3}$

D$\frac{5}{3}$

Solution

(c)
The correct answer is $C$.
Given,
masses $=2\,kg , 4\, kg$
$f =10\,N$
So,
Force $(f)=(2+4) a$
or,
$a=\frac{f}{6}=\frac{10}{6} m / s ^2$
Let the force of spring is $T$
so,
$T=2 a=2 \times \frac{10}{6}$
$=\frac{10}{3}\,N$
Thus, the spring force between the two blocks will be $\frac{10}{3}\,N$

Standard 11

Physics

A man is standing at a spring platform. Reading of spring balance is $60\, kg$ wt. If man jumps outside platform, then reading of spring balance

easy

(AIIMS-2000)

Two blocks $1$ and $2$ of equal mass $m$ are connected by an ideal string (see figure below) over a frictionless pulley. The blocks are attached to the ground by springs having spring constants $k_1$ and $k_2$ such that $k_1 > k_2$. Initially, both springs are unstretched. Block $1$ is slowly pulled down a distance $x$ and released. Just after the release the possible values of the magnitudes of the accelerations of the blocks $a_1$ and $a_2$ can be

hard

(KVPY-2012)

Two blocks $A$ and $B$ of masses $3\,m$ and $m$ respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of $A$ and $B$ immediately after the string is cut, are respectively

medium

(NEET-2017)

In the setup shown, a $200\, N$ block is supported in equilibrium with the help of strings and a spring. A point $O$, the strings knotted. Extension in the spring is $4\, cm$. Force constant of the spring is closest to ………… $N/m$ $[g = 10\, m/s^2]$

medium

When acceleration of $5\ kg$ block is $2\ m/s^2$ as shown in figure, then what will be the acceleration of $15\ kg$ block ………… $m/s^2$

medium

Two blocks of mass $2 \,kg$ and $4 kg$ are accelerated with same acceleration by a force $10 \,N$ as shown in figure on a smooth horizontal surface. Then the spring force between the two blocks will be .......... $N$ (spring is massless)

Solution

Similar Questions

A man is standing at a spring platform. Reading of spring balance is $60\, kg$ wt. If man jumps outside platform, then reading of spring balance

Two blocks $A$ and $B$ of masses $3\,m$ and $m$ respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of $A$ and $B$ immediately after the string is cut, are respectively

In the setup shown, a $200\, N$ block is supported in equilibrium with the help of strings and a spring. A point $O$, the strings knotted. Extension in the spring is $4\, cm$. Force constant of the spring is closest to ………… $N/m$ $[g = 10\, m/s^2]$

When acceleration of $5\ kg$ block is $2\ m/s^2$ as shown in figure, then what will be the acceleration of $15\ kg$ block ………… $m/s^2$

Start a Free Trial Now