Speed of the center of mass of the two carts
A 320-g air track cart traveling at 1.25 m/s collides elastically with a stationary 270-g cart. What is the speed of the center of mass of the two carts?
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A projectile is launched with an initial velocity of 253 m/s, at an angle of 45° above the horizontal. At a certain point, A, in its motion, its velocity angle is 19° above the horizontal. At another point, B, later in its motion, its velo
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