The discussion revolves around the inelastic collision of a cannonball with a tank, focusing on the principles of momentum and kinetic energy. Participants are exploring the implications of friction and energy conservation in the context of this collision.
There is an ongoing exploration of the collision type and the role of friction. Some participants have offered insights into the energy dynamics involved, while others are questioning the assumptions about energy conservation in elastic versus inelastic collisions.
Participants note confusion regarding the role of friction as a non-conservative force and its impact on the energy dynamics of the system. There is also mention of specific distances and coefficients of friction that may not have been fully defined in the discussion.
You can take the whole process as two stages.reminiscent said:Homework Statement
Homework Equations
Total initial momentum = total final momentum
Momentum = m*v
Kinetic energy = 1/2 * m * v2
The Attempt at a Solution
What I found so far:
m1v1i = (m1+m2)vf
Total kinetic energy = 1/2 * (m1 + m2)vf2 - 1/2 * m1 * v1i2
I am confused on how friction comes into play here. I know that friction is a non-conservative force.
The energy imparted to the tank by the projectile must be used to move the tank against the friction which exists between the tank and the pavement. In essence, part of the energy of the projectile must be converted to work in order to overcome friction.reminiscent said:Homework Statement
Homework Equations
Total initial momentum = total final momentum
Momentum = m*v
Kinetic energy = 1/2 * m * v2
The Attempt at a Solution
What I found so far:
m1v1i = (m1+m2)vf
Total kinetic energy = 1/2 * (m1 + m2)vf2 - 1/2 * m1 * v1i2
I am confused on how friction comes into play here. I know that friction is a non-conservative force.
The result is correct.reminiscent said: