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Question: Two carts move in the same direction


Two carts move in the same direction along a frictionless air track, each acted on by the same constant force for a time interval Δt. Cart 2 has twice the mass of cart 1. Which one of the following statements is true?
(a) Each cart has the same change in momentum.
(b) Cart 1 has the greater change in momentum.
(c) Cart 2 has the greater change in momentum.
(d) The changes in momenta depend on the initial velocities.

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