Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown in the figure below. A horizontal force Fis applied tom,. Takem= 12.0 kg, m,= 5 kg,m3= 3.0 kg, andF= 30 N a) Find the acceleration of the system b) Find the contact force between block 2 and 3 c) Find the contact force between 1 and 2 m1 m2 m3

Two forces F, and F2 act on a 5.40-kg object. F1 = 25.0 N and F2 = 13.0 N. a (a) Find the acceleration of the object for the configuration of forces shown in Figure (a). magnitude m/s2 direction ° (counterclockwise from F,) (b) Find the acceleration of the object for the configuration of forces shown in Figure (b). magnitude m/s? direction ° (counterclockwise from F,)

Andrea pulls a 25 kg box horizontally from rest while exerting a constant horizontal force, displacing the box 3.0 m in 10 s. Neglecting friction, the force Andrea exerts on the box is approximately.

F m₁ 8 A 5 kg block is on a 39 degree incline for which uk = 0.1. It is acted on by a horizontal force of 24 N, as shown in the above figure. a) What is the acceelreation of the block if it is moving up the incline? (enter a positive value if the acceleration is directed up the incline, enter a negative value if the acceleration is directed down the incline) m/s² b) If its initial speed is 5 m/s up the incline, how far does it travel in 2 s? m