A body of mass $10\,kg$ moving with speed of $3 \,ms ^{-1}$ collides with another stationary body of mass $5 \,kg$. As a result, the two bodies stick together. The $KE$ of composite mass will be .......... $J$
A body of mass $10\,kg$ moving with speed of $3 \,ms ^{-1}$ collides with another stationary body of mass $5 \,kg$. As a result, the two bodies stick together. The $KE$ of composite mass will be .......... $J$
- A
$60$
- B
$30$
- C
$90$
- D
$120$
Similar Questions
If momentum of a body is increased by $20 \%$, then its kinetic energy increases by$....\%$
If momentum of a body is increased by $20 \%$, then its kinetic energy increases by$....\%$
- [JEE MAIN 2022]
If kinetic energy of a body is increased by $300\%$ than percentage change in momentum will be
If kinetic energy of a body is increased by $300\%$ than percentage change in momentum will be
- [AIPMT 2002]
A projectile is fired with $KE$ of $1\,kJ$. If the range is maximum, .......... $J$ is its $KE$ at the highest point.
A projectile is fired with $KE$ of $1\,kJ$. If the range is maximum, .......... $J$ is its $KE$ at the highest point.
The kinetic energy of a body decreases by $36\%$. The decrease in its momentum is ............... $\%$
The kinetic energy of a body decreases by $36\%$. The decrease in its momentum is ............... $\%$
A vehicle of mass $m$ is moving on a rough horizontal road with momentum $P$. If the coefficient of friction between the tyres and the road be $\mu$, then the stopping distance is
A vehicle of mass $m$ is moving on a rough horizontal road with momentum $P$. If the coefficient of friction between the tyres and the road be $\mu$, then the stopping distance is