Physics, 17.04.2020 00:16, melissareid65

A cart of mass m is moving with negligible friction along a track with known speed v to the right. It collides 1 with and sticks to a cart of mass 4m moving with known speed v to the right. Which of the two principles, 2 conservation of momentum and conservation of mechanical energy, must be applied to determine the final speed of the carts, and why

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A cart of mass m is moving with negligible friction along a track with known speed v to the right. I...