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MU Unit 06 Momentum L Exam
A child is on a sled moving down a hill at 10 m/s. The combined mass of the sled and child is 100 kilograms. The momentum of the child and sled is
20 kg-m/s
2000 kg-m/s
1000 kg-m/s
5 kg•m's

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)