Basic com doubt
how is momentum conservation applied as there is a constant force(gravity) acting on the two particles>?
9 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.It is conserved in x axis
Force acting is in y axis
ha hum y axis me hi calculaions kr rhe hai na
Oh mb I thought it was that cart question ðŸ˜
It shouldn’t work imo
lol
okay
thanks
@Gaurav no it will work just before and just after the collision because at the time of collision two opposite impulsive forces will be acting on the wood and bullet that will cancel each other out
Since impulsive forces are very large compared to gravitational force the downward gravitational force can be neglected compared to the large downward impulsive force acting on the bullet wood system
And upwards and downwards impulsive forces cancel out giving us a net zero force just dt seconds before and after the collision
And yes you’re absolutely correct about a net gravitational force downwards hence momentum is not conserved in y direction across long timespan, but for dt seconds before and after collision we can approximate and assume it to be conserved for that infinitely small interval of time
thanks a lot brother +solved @DarkWhite
+solved @Gaurav
+solved @DarkWhite
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