The acceleration of the system equals the net force on the system divided by the system's total mass. True False

A 920 kg car is pulling a 325 kg trailer. Together the car and trailer have an acceleration of +2.25 m/s2 in the forward (positive) direction. Neglecting frictional forces on the trailer, determine the following.(a) the force on the car  N(b) the net force on the trailer  N(c) the force exerted on the car by the trailer  N(d) the resultant force exerted on the road by the carMagnitude NDirection ° (measured from the left of vertically downwards)

Two people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered (essentially frictionless) pond. If the heavier person pushes on the lighter one with a force F, then A. the force felt by the heavier person is (-1/2)FB. the force felt by the person is -2FC. the magnitude of the acceleration of the lighter person will be half of the magnitude of the acceleration of the heavier personD. the magnitude of the acceleration of the lighter person will be twice the magnitude of the acceleration of the heavier personwww.crackap.com ---------------------

Commercial airplanes are sometimes pushed out of the passenger loading area by a tractor. (a) An 1800-kg tractor exerts a force of 1.75×104 N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.150 m/s2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor on the airplane, assuming 2200 N of the friction is experienced by the airplane. (c) Draw two sketches showing the systems of interest used to solve each part, including the free-body diagrams for each.

A pulley and rope hang two people. A person pulls downward on the leg of person number 2 with a force of 400 N. (so person one accelerates up and person 2 accelerates down). Mass of person 1 = 50.0 kg & Mass of person 2=60.0 kg. Find the acceleration of the system and the tension in the rope.

A force F  applied to an object of mass m1 produces an acceleration of 3.70 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 2.00 m/s2. (a) What is the value of the ratio m1/m2? (b) If m1 and m2 are combined into one object, find its acceleration under the action of the force F

A force applied to an object of mass m1 produces an acceleration of 3.20 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.10 m/s2. (a) What is the value of the ratio m1/m2?   (b) If m1 and m2 are combined into one object, find its acceleration under the action of the force.

Please explain in details: Two masses (m1 = 10.0 kg and m2 = 5.00 kg) are at rest side by side (m1 is to the left of m2). If a force of 120.0 N [R] is applied to m1 and the coefficient of kinetic friction between the masses and the surface is 0.750, a) Draw the FBD’s and state all system equations (Comm)b) Find the magnitude of the acceleration of the masses (TI)c) Find the magnitude of the normal force between the masses (TI)

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.