Question
Why does a gunman get a jerk on firing a bullet? 
✓
Answer
Gunman gets a jerk on firing a bullet because when a bullet is fired from a gun, the force sending the bullet forward is equal to the force sending the gun backwards but due to high mass of the gun, it moves only a little distance backwards giving a jerk to the gunman.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
List a fer'flight adaptations in birds.
Write the scientific names of:
- Prawn.
- House fly.
- Star fish.
- Squid.
- Appple snail.
- Fresh water mussel.
A $10\ g$ bullet travelling at $200\ m/s$ strikes and remains embedded in a $2\ kg$ target which is originally at rest but free to move. At what speed does the target move off?
→State two consequences, which one has to face while dealing with an infectious diseases?
A hammer of mass $500 g$ , moving at $50 m s ^{-1}$, strikes a nail. The nail stops the hammer in a very short time of $0.01 s$ . What is the force of the nail on the hammer?
→A hollow plastic ball is taken to the bottom of a trough of water and released there (see adjoining figure). 
- What happens to the ball?
- Give reason for this phenomenon.
A cyclist is moving with a speed of $14m/s$. He starts accelerating with a rate of $6m/s^2$ and acquired the speed of $18m/s$. Calculate, what distance did he move in acquiring that speed?
→How are given mass, molar mass and number of moles related to each other?
A object having a mass $2 \ kg$ and moving at $14 m / s$ collides with another object of mass $5 \ kg$ at rest and sticks to it. Find the speed of this combination.
→Why do solids are generally denser than liquids and gases?