A train engine pulls the boxcars. What are the horizontal forces presented? A. Pull of engine friction
B. Push of engine friction
C. Pull of engine weight
D. Weight friction

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Asher cycles 12 miles in 16 hours. what is his speed?

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