With respect to all the other objects in the image, the stationary person is A)
in motion.
B)
stationary
moving faster than the other objects.
D)
moving slower than the other objects.

Can someone explain to me how to do this problem ?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

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