A ball thrown vertically upward takes four seconds to rise from the bottom of its path to its highest point. At what time is its instantaneous speed equal to the magnitude of its average velocity for the entire upward motion from bottom to top

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