- #1
adz7861
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- Homework Statement
- Expression for the total loss of energy after the collision
- Relevant Equations
- p=mv
KE=1/2mv^2
Last edited:
Ok, but which option does that match?adz7861 said:Homework Statement:: Expression for the total loss of energy after the collision
Relevant Equations:: p=mv
KE=1/2mv^2
View attachment 272111
View attachment 272113
haruspex said:Ok, but which option does that match?
Then you are making a mistake beyond the working you posted. What you posted matches B.adz7861 said:I keep getting my answer to be C, when the real answer is B
The only difference in B & C are the different masses on the nominator. What I've got is the mass of the moving particle (mE) as the nominator. The answer states that it should be ME which is the mass of the stationary particle.haruspex said:Then you are making a mistake beyond the working you posted. What you posted matches B.
Can you subtract fractions?adz7861 said:The only difference in B & C are the different masses on the nominator. What I've got is the mass of the moving particle (mE) as the nominator. The answer states that it should be ME which is the mass of the stationary particle.
So my working out must be incorrect, unless I'm missing a further step.
I've basically done the KE after the collision - KE before collision to give me a value for the energy loss. I am confused on what to do further after my last equation.
Exactly. Get your answer into the form of the choices, a single fraction.adz7861 said:unless I'm missing a further step.
Momentum is a physical quantity that describes the motion of an object. It is defined as the product of an object's mass and its velocity.
Momentum is calculated by multiplying an object's mass (m) by its velocity (v). The formula for momentum is p = mv.
The conservation of momentum states that in a closed system, the total momentum before a collision or interaction is equal to the total momentum after the collision or interaction. This means that momentum is conserved, or remains constant, in a closed system.
In a collision of two masses, the total momentum of the system is conserved. This means that the total momentum before the collision is equal to the total momentum after the collision. However, the individual momentums of the two masses may change, depending on the type of collision (elastic or inelastic).
The momentum of an object is affected by its mass and velocity. A larger mass or a higher velocity will result in a greater momentum. Additionally, external forces acting on an object can also affect its momentum.