A block of mass m=2.0kg is held in equilibrium on an incline of angle=60 degrees by the horizontal force F.
a) determine the value of F
b) determine the normal force exerted by the incline on the block (ignore friction).

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a) We only really need to think about motion along the plane of the incline for this part of the question. There is one force pulling it down the hill. What is this force? It is the component of gravity in that direction. The gravity force acts downward. This force can be split into two orthongonal components, one acting in the direction ...

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The solution includes a detailed explanation and calculations for questions that apply Newton's laws.

The weight of the block in the drawing is 80.2 N. The coefficient of static friction between the block and the vertical wall is 0.490.
(a) What minimum force F is required to prevent the block from sliding down the wall?
(b) What minimum force is required to start the block moving up the wall?

An athlete whose mass is m is performing weight-lifting exercises. Starting from the rest position, he lifts, with constant acceleration, a barbell that weighs w. He lifts the barbell a distance of x in a time of t.
Use Newton'slaws to find the total force that his feet exert on the ground as he lifts the barbell.
Take free

See attached file.
What horizontal force must be applied to the cart shown in the figure in order that the blocks remain stationary relative to the cart? Assume all surfaces, wheels, and pulley are frictionless. (Hint: Note that the tension in the string accelerates m1.)

A block of mass m1 = 4.70 kg sits on top of a second block of mass m2 = 16.3 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are µs = 0.300 and µk = 0.100. The coefficients of friction between the lower block and the rough table are µs = 0.600 and µk = 0.500. You apply a consta

Need help with the equation/solution to this problem.
An individual weighing 600 N stands still with her hips flexed. Her hip extensor muscles are contracting with a force of 3000 N, and her ankle plantarflexor muscles with a force of 3200 N. What is the magnitude of the ground reaction force acting on her?

Banked Curve I. A curve with a 120-m radius on a level road is banked at the correct angle for a speed of 20 m/s.
If an automobile rounds this curve at 30 m/s, what is the minimum coefficient of static friction between tires and road needed to prevent skidding?

Please see the attached file for full description and diagram.
Two objects are connected by a light string that passes over a friction-less pulley. The incline is friction-less, m1 = 2.00 kg, m2 = 6.00 kg, and theta = 55.0 degrees. Answer the following and show all work.
Find:
a) the acceleration of the objects
b) the te

The following equations describe the motion of a system of two objects:
+n - (5.00 kg)(9.8 m/s2)cos 15.0° = 0
fk = 0.360n
+T + (5.00 kg)(9.8 m/s2)sin 15.0° - fk = (5.00 kg)a
-T + (3.10 kg)(9.8 m/s2) = (3.10 kg)a
(a) Solve the equations for a and T.
a (in m/s2)=
T (in N)=
In what situation might these equations be u