conservation of momemtum
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movementum of a system remain same constant if no net Extrenal force act on system
it may help you...
movementum of a system remain same constant if no net Extrenal force act on system
it may help you...
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First you should what is momentum?
1.Momentum:The change of velocity with respect to time is called Momentum.
2.Momentum is denoted by P
3.The formula of momentum:P=m×v
4.Momentum is a vector quantity
1.The magnitude of total final momentum=The magnitude of total initial momentum
Explanation:Thus, if no external force is acting on two object , then their total initial momentum is equal to their total final momentum.This statement is true for any number of objects .
2.When no external force acts on two interacting objects , their total momentum remains constant. It does not change
Explanation:This is a corollary to Newton third law of motion.The momentum is changed after the collision.The momentum gets redistributed between the colliding objects . the momentum of one of the objects decreases while that of the other increases .
3.When two object collide , the total momentum before collision is equal to the total momentum after collision.
Explanation:Let take the example of a bullet fired from a gun . When a bullet of mass m1 is fired from a gun of mass m2 its velocity becomes v1, and it's momentum becomes m1 v1 .Before firing the bullet , both the gun and the bullet are at rest anf hence the total initial momentum is zero. According to the above law , the total final momentum also has to be zero.Thus ,the forward moving bullet causes the gun to move backward after firing . this backward motion of the gun is recoil. The velocity of recoil ,v2 is such that
m1*v1 + m2*v2 = 0 or v2= - m1/m2 × v1
I hope it may help you
1.Momentum:The change of velocity with respect to time is called Momentum.
2.Momentum is denoted by P
3.The formula of momentum:P=m×v
4.Momentum is a vector quantity
1.The magnitude of total final momentum=The magnitude of total initial momentum
Explanation:Thus, if no external force is acting on two object , then their total initial momentum is equal to their total final momentum.This statement is true for any number of objects .
2.When no external force acts on two interacting objects , their total momentum remains constant. It does not change
Explanation:This is a corollary to Newton third law of motion.The momentum is changed after the collision.The momentum gets redistributed between the colliding objects . the momentum of one of the objects decreases while that of the other increases .
3.When two object collide , the total momentum before collision is equal to the total momentum after collision.
Explanation:Let take the example of a bullet fired from a gun . When a bullet of mass m1 is fired from a gun of mass m2 its velocity becomes v1, and it's momentum becomes m1 v1 .Before firing the bullet , both the gun and the bullet are at rest anf hence the total initial momentum is zero. According to the above law , the total final momentum also has to be zero.Thus ,the forward moving bullet causes the gun to move backward after firing . this backward motion of the gun is recoil. The velocity of recoil ,v2 is such that
m1*v1 + m2*v2 = 0 or v2= - m1/m2 × v1
I hope it may help you
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