Physics, 24.11.2020 04:00 hgtfdtdytrytdy748

A lab cart with a mass of 15 kg is moving with constant velocity, 3 m/s, along a straight horizontal track. A student drops a 2 kg mass into it from directly above, and the cart continues moving. What is the final velocity, in m/s, rounded to the nearest tenth? (Numbers Only!)

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A lab cart with a mass of 15 kg is moving with constant velocity, 3 m/s, along a straight horizontal...