A bomb of 12 , kg explodes into two pieces of | vedclass

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

Question

(D) Initially,the bomb is at rest,so the total initial momentum is $0$.According to the law of conservation of linear momentum,the total final momentu

Vedclass · Accepted Answer

$288$

Vedclass · Answer

(D) Initially,the bomb is at rest,so the total initial momentum is $0$.According to the law of conservation of linear momentum,the total final momentum must also be $0$.Let $v$ be the velocity of the $4 \, kg$ mass.$m_1 v_1 + m_2 v_2 = 0$$4 	imes v + 8 	imes 6 = 0$$4v = -48$$v = -12 \, m/s$ (The negative sign indicates the direction is opposite to the $8 \, kg$ mass).The magnitude of the velocity is $12 \, m/s$.The kinetic energy of the $4 \, kg$ mass is given by $KE = \frac{1}{2} m v^2$.$KE = \frac{1}{2} 	imes 4 	imes (12)^2$$KE = 2 	imes 144 = 288 \, J$.

$A$ bomb of $12 \, kg$ explodes into two pieces of masses $4 \, kg$ and $8 \, kg$. The velocity of $8 \, kg$ mass is $6 \, m/s$. The kinetic energy of the other mass is .............. $J$

Similar Questions

The $pH$ of a buffer solution made by mixing $25 \ mL$ of $0.02 \ M \ NH_4OH$ and $25 \ mL$ of $0.2 \ M \ NH_4Cl$ at $25^{\circ}C$ is ($pK_b$ of $NH_4OH = 4.8$).

Which of the following reagents are required to prepare $3$-ethylpentan-$3$-ol?

What is the output $Y$ in the following circuit,when all the three inputs $A, B, C$ are first $0$ then $1$?

If the wavelength of an electromagnetic radiation is $2000 \ \mathring{A}$,what is its energy in ergs?

The temperature in $K$ at which $\Delta G = 0$ for a given reaction with $\Delta H = -20.5 \ kJ \ mol^{-1}$ and $\Delta S = -50.0 \ J \ K^{-1} \ mol^{-1}$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module