|
ID/Type |
Web Link or WA Question Code |
Local download |
Launch from browser |
Description |
|
L06 |
The Nature
of Static Friction |
friction_static-01.iwp |
friction_static-01.iwp |
An object rests on a horizontal surface. A pulling force is applied on the block to the right. As the applet runs, the tension force is increased to the point at which the block begins to slide. What happens to the forces at this point? Note: The Friction force labeled on the animation may be either static or kinetic depending on whether or not the block is moving. |
|
M04 |
Hooke's
Law |
hookeslaw03b.iwp |
hookeslaw03b.iwp |
A platform (black) is suspended from a fixed support by a rubber band. Weight can be added to the platform. When the red stick is pulled away, the platform with its weight will oscillate vertically and eventually come to rest at its equilibrium position. The goal of the problem is to take data to find the spring constant of the rubber band and to find the mass of the platform. With platform held in place by the stick, the rubber band is unstretched. Click the play buttom to pull the stick away quickly and let the platform fall. After the platform reaches its resting position, read the position to the nearest 0.001 m. (In order to make the motion damp more quickly, increase the value of the damping coefficient.) Add 0.1 kg of mass to the plaform and click Reset. Then play the animation to see the new equilibrium position. Record the reading. Continue to add mass in increments of 0.1 kg and measure the equilibrium position each time. Tic marks are placed every 0.05 m to aid in taking readings. |
|
M05 |
Turntable Physics |
turntable05.iwp |
turntable05.iwp |
A penny on a turntable slides off when the turntable reaches a certain frequency. What is the relationship between the radius of the coin's path and the frequency at which the coin slips? What is the value of the coefficient of static friction between the coin and turntable? |
|
E.06.01Av3 |
APB-06-01A-01v2 |
stopblock01d.iwp |
stopblock01d.iwp |
An object initially moving horizontally is slowed by the force of kinetic friction between the block and the surface on which the block slides. |
|
E.06.01Av3 |
APB-06-01A-01tv2 |
stopblock01e.iwp |
stopblock01e.iwp |
An object initially moving horizontally is slowed by the force of kinetic friction between the block and the surface on which the block slides. |
|
E.06.01Bv3 |
PB-06-01Bv2 |
incplane04.iwp |
incplane04.iwp |
An object slides down a frictionless inclined plane. The plane makes an angle of theta with the horizontal. |
|
E.06.01Bv3 |
APB-06-01Btv3 |
incplane04b.iwp |
incplane04b.iwp |
An object slides down a frictionless plane. The plane makes an angle theta with the horizontal. The forces acting on the object are the normal force acting perpendicular to the plane and the weight acting vertically downward. |
|
E.06.01Cv3 |
APB-06-01C-01b |
friction01b.iwp |
friction01b.iwp |
A red box slides down a wall. The box is in motion at t = 0. A constant force (for example, from a hand) is applied on the box to the right. The grid spacing is 1 meter. Assume the axis directions shown. |
|
E.06.01Cv3 |
APB-06-01C-tutv3 |
friction01c.iwp |
friction01c.iwp |
A red box slides down a wall. The forces on the box are shown. Try changing the parameters (mass of box, coefficient fo kinetic friction, applied force) to see how that affects the force vectors. |
|
E.06.02a |
APB-06-02a-01 |
pulley-plane-04.iwp |
pulley-plane-04.iwp |
Two blocks are connected by a massless, unstretchable string which passes over a frictionless, massless pulley. There is no friction between the red block and the plane. When the blue block is released, the system of the two blocks accelerates. What is the acceleration of the system?
Caution: Unphysical results will be obtained if blocks slide past the table boundaries. |
|
E.06.02a |
APB-06-02a-02 |
pulley-plane-05.iwp |
pulley-plane-05.iwp |
Two blocks are connected by a massless, unstretchable string which passes over a frictionless, massless pulley. There is no friction between the red block and the plane. When the blue block is released, the system of the two blocks accelerates.
What is the acceleration of the system? How must the masses compare in order for the system of the two blocks to be in equilibrium?
Caution: Unphysical results may be obtained with certain combinations of masses. |
|
E.06.02a |
APB-06-02a-03 |
atwoods-01.iwp |
atwoods-01.iwp |
Two blocks are connected by a massless, unstretchable string which passes over a frictionless, massless pulley. The pulley is supported from above. When the blocks are released, the system of the two blocks accelerates. What is the acceleration of the system?
Caution: Unphysical results will be obtained if blocks slide past the pulley. |
|
E.06.02a |
APB-06-02a-04 |
equilibrium-01.iwp |
equilibrium-01.iwp |
A ball is suspended by strong wires from two posts. What are the magnitudes and directions of the forces on the ball? |
|
E.06.02a |
APB-06-02a-05 |
equilibrium-02.iwp |
equilibrium-02.iwp |
A ball is suspended by strong wires from two posts. The tension forces and weight are shown. Step through the animation using the >> button to see how the forces change for different vertical positions of the ball. |
|
E.06.02a |
APB-06-02a-06 |
equilibrium-03b.iwp |
equilibrium-03b.iwp |
A ball is suspended by strong wires from two posts. The tension forces and weight are shown. Step through the animation using the >> button to see how the forces change for different horizontal positions of the ball. |
|
E.06.02b |
APB-06-02-03tv2 |
pulley-plane-05a.iwp |
pulley-plane-05a.iwp |
Two blocks are connected by a massless, unstretchable string which passes over a frictionless, massless pulley. There is no friction between the red block and the plane. When the blue block is released, the system of the two blocks accelerates.
What is the acceleration of the system and the tension in the connecting string in terms of the masses, the angle of inclination, and g? |