suppose you are on a cart, initially at rest, which rides on a frictionless horizontal track. you throw a ball at a vertical surface that is firmly attached to the cart. if the ball bounces straight back as shown in the picture, will the cart be put into motion after the ball bounces back from the surface?

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward