Start Free Mock LoginAlready registered? Login here

Physics - NLM Question with Solution | TestHub

PhysicsNLMMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A bomb of mass $30 kg$ at rest explodes into two pieces of masses $18 kg$ and $12 kg$ . The velocity of 18 kg mass is $6 m s^{- 1}$ . The kinetic energy of the other mass is

Options:

Answer:

Solution:

From conservation of linear momentum

$m_{1} ν_{1} + m_{2} ν_{2} = 0$

$ν_{2} = (\frac{{- m}_{1}}{m_{2}}) ν_{1} = (\frac{- 18}{12}) 6 = - 9 m s^{- 1}$

$K . E . = \frac{1}{2} m_{2} ν_{2}^{2} = \frac{1}{2} \times 12 \times 9^{2} = 486 J$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...