The block A with mass of 80 kg slides along the top of the block B with mass of 110 kg. The block A has an acceleration of 3.0 m/s2 when a horizontal force F of 700 N is applied, as in the Figure. There is no friction between the block B and a horizontal frictionless surface, but there is friction between the two blocks. Calculate the acceleration of the block A is going to B during the time that the block A remains in contac

In the diagram shown below, the lower block is acted on by a force, F, which has a magnitude of 76.4N. The coefficient of kinetic friction between the lower block and the surface is 0.291. The coefficient of kinetic friction between the lower block and the upper block is also 0.291. What is the acceleration of the lower block, if the mass of the lower block is 4.94kg and the mass of the upper block is 2.97kg?

Four people (A-B) push heavy crates across a level surface. Each crate is on an ideal, wheeled cartand experiences no resistive forces. Person A pushes with a force F and has a crate with massm. The other people's push forces and crate masses are given relative to person A. Rank the fourcrates by the magnitude of their acceleration from least to greatest. If you was ranking them as symbols "<" and "="."=". For example "W < X = Y < Z". what would be the order. please help  see picture for options.

In a TV commercial pickup truck B of mass mB lifts large crate A of mass mA toawrd the top of a cliff by means of a cable and a frictionless pulley. The truck uses constant thrust force F to do the job and accerates forward starting from rest, There are no friction forces except the thrust force F.  a) Determine a symbolic formula for the magnitude of the acceration experienced by the crate. The final formula should not include the unknown tension force.  b) explain whether the cable tension must be greater than, equal to, or less than the crate weight.  c) for mass mA= 1500 kg, mb=2800 kg, and F=18,000N, how far will the crate rise in the first 3.5 s of motion?

Two blocks of masses m, and m2 (20 Kg and 5 Kg respectively) are placed on a frictionless table in contact with each other (Figure 2). A horizontal force F of magnitude 100 N is applied to the block of mass m1. 5.5 m, (a) Draw the free-body diagram of each of the two blocks. F m2 (b) If P is the magnitude of the contact force between the blocks, draw the free-body diagrams for each block. Figure 2 (b) What is the net force on the system consisting of both blocks? (c) What is the net force acting on m,? (d) What is the net force acting on m2? (e) Write the x-component of Newton's second law for each block (f) Solve the resulting system of two equations and two unknowns, expressing the acceleration a and contact force P in terms of the masses and force. (g) How would the answers change if the force had been applied to m2 instead?

An object of mass m is being acted by the following 3 forces: F1 = 500 N @ 45⸰ North of East, F2 = 750 N @ 30⸰ West of North and F3 = 400 N @ 30⸰ South of West.  Find mathematically the magnitude and direction of a fourth force F4 that will maintain the object at equilibrium.  Ignore the weight of the object. Provide free body diagram for the system and the sum of the forces along the axis.

A 5.00-kg block is placed on top of a 10.0-kg block (as shown). A horizontal force of 45.0 N is applied to the 10-kg block, and the 5.00-kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.200. (a) Draw a free-body diagram for each block and identify the action–reaction forces between the blocks. (b) Determine the tension in the string and the magnitude of the acceleration of the 10.0-kg block.

A box of mass m1 rests on a smooth, horizontal floor next to a box of mass m2. suppose the force of 20.0 N pushes on two boxes of unknown mass.

A warehouse worker applies a force F to accelerate two crates, mã and mp, to the right along a rough floor. Crate mд has a mass of 4m, crate mp has a mass of m. Choose 1 answer: A F Which is the correct relationship between the applied force F acting on mд and the force mд exerts on mB? B D MA mB The force Facting on my is smaller than the force that mA exerts on MB. The force Facting on my is the same as the force that mA exerts on MB. The force Facting on my is larger than the force that mд exerts on MB. The answer depends on the relative size of the friction force on MA and MB.

Two forces F, and F, act on a 6.40-kg object. F, = 30.0 N and F2 = 10.0 N. 2 F, 90.0° 60.0° m m (a) Find the acceleration of the object for the configuration of forces shown in Figure (a). magnitude m/s? O (counterclockwise from F,) direction (b) Find the acceleration of the object for the configuration of forces shown in Figure (b). magnitude m/s2 direction ° (counterclockwise from F,)