Two particles with masses m and 3m are moving toward each other along the x axis with the same initial speeds vi. particle m is traveling to the left, and the particle 3m is traveling to the right. they undergo an elastic glancing collision such that particles m is moving in the negative y direction after the collision at a right angle from its initial direction.

(a) find the final speeds of the two particles in terms of vi.

(b) what is the angle theta at which the particle 3m is scattered?

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

The force it would take to accelerate an 900-kg car at the rate of 6m/s2