An air-track cart with mass m1=0.28kg and initial speed v0=0.75m/s collides with and sticks to a second cart that is at rest initially. if the mass of the second cart is m2=0.43kg, how much kinetic energy is lost as a result of the collision?

The kinetic energy lost as a result of the collision is 0.048 J.

The given parameters;

The final velocity of both carts after collision is calculated by applying the principle of conservation of linear momentum;

The initial kinetic energy before collision is calculated as;

The final kinetic energy after collision is calculated as;

The change in kinetic energy is calculated as;

Thus, the kinetic energy lost as a result of the collision is 0.048 J.

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d) physical means can be used to separate the components of air.