Two children fight over a 200g stuffed bear. the 25kg boy pulls to the right with a 15n force and the 20kg girl pulls to the left with a 17n force. ignore all other forces on the bear (such as its weight). whats the magnitude? .

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.)