please solve this for me it's of physics
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solve answers is given in above pic
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Given:-
- Mass of bullet is 15g.
- Velocity of bullet is 120m/s.
- Recoil velocity of gun is 1m/s.
To Find:-
- The mass of the gun.
Concept Used:-
We will make use of law of conservation of momentum which is mathematically stated as :
[ For soluⁿ refer to attachment : ]
More to know :-
The three equⁿs of motion are
- v = u + at.
- s = ut + ½at².
- 2as = v² - u².
- = u + ½a[2n-1] .
➥ When a body is projected with initial velocity u then the maximum height achieved is : u²/2g .
➥ When a body is dropped from a certain height then the velocity attained after covering a distance of h is : √2gh .
➥ Time of ascent is given by : √[2h/g]
➥ Time of a cent is equal to time of descent when air friction is neglected and equals to : u/g .
➥ Momentum of a body is given by product of mass and velocity : p = mv .
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