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The following system is released from rest. The surface is rough with a coefficient of kinetic...
We have the familiar system shown below. The surface is frictionless except for two rough patches...
We have the familiar system shown below. The surface is frictionless except for two rough patches both of which have the same coefficient of kinetic friction uk with the mass but possibly different lengths L1 and L2. The positive directions for both masses are shown as well. The masses are released from rest. It turns out that the mass m spends the same amount of time over both patches. + m L1, JK L2, lk M Question 1 1 pts...
A 5 kg block is released from rest on a plane with a rough surface that...
A 5 kg block is released from rest on a plane with a rough surface that is inclined at 25 degree. The coefficient of kinetic friction between the block and the plate is 0.2 and the coefficient of state friction between the block and the plane is 0.5. Draw a free body diagram of the block. What is the acceleration of the block? For the system below, m1 = 10 kg and m2 = 15 kg. The table and pulley...
1 45 kg is released from rest from the top of a rough ramp, with Mass...
1
45 kg is released from rest from the top of a rough ramp, with Mass - coefficient of kinetic friction 0.25 between the block and the incline, of height 3.2 m and length d 5.5 m. At the bottom of the ramp, the mass slides on a horizontal, frictionless surface until it compresses a spring of spring constant k 2. 110 N/m. a. Calculate the speed of the mass at the bottom of the ramp? b. How far does...
3. Two masses are connected by a string passing over a frictionless pulley as in the...
3. Two masses are connected by a string passing over a frictionless pulley as in the figure. The pulley is a 5 kg, 0.5 m radius ring with five 1 kg spokes. The ramp has a kinetic friction coefficient uk = 0.2. What is the acceleration of the mass on the left? Answer: 1.94 m/s2 10kg
A solid block of mass 60.0 kg starts from rest and slides down a rough surface...
A solid block of mass 60.0 kg starts from rest and slides down a rough surface with a length of 10.0 m where the coefficient of friction is uk=0.20. The surface is inclined at 40.0°. After sliding 10 meters down the incline it hits a spring with a spring constant of ks = 550.0 N/m. Draw a freebody Diagram indicating all forces. Write out and solve the force and energy equations. How high is the block above the spring at...
An object with a mass, m = 5 kg, is released from rest at the top...
An object with a mass, m = 5 kg, is released from rest at the top of the ramp. The length of the ramp is 2.3 m. The object slides down the ramp reaching a speed of 2.1 m/s at the bottom. a) If the friction force between the ramp and the object is 3 N, find the angle between the ramp and the horizontal theta (in degrees). b) What speed (in m/s) does the object reach at the bottom...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as shown. The mass of the crate is 55 kg and the coefficient of kinetic friction M = 0.35. a) What applied force is required to keep the box moving at a constant acceleration of 3m/s2 ? b) What applied force is needed to keep the box moving at a constant speed, that is, no acceleration? (2 pts.) 3. A 60-kg skier starts from rest...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the s...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of p. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of 0 with the horizontal. The box was initially travelling to the right at speed v = 1.3" If M =9.7kg,...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the s...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of u. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of with the horizontal. The box was initially travelling to the right at speed u = 1.5". If M = 8.7kg,...
The 52-lb block rests on the rough surface for which the coefficient of kinetic friction is...
The 52-lb block rests on the rough surface for which the coefficient of kinetic friction is mu_k = 0.2. A force F = (40 + s^2) lb, where s is in ft, acts on the block in the direction shown. The spring is originally unstretched (s = 0) and the block is at rest. (Figure 1) Part A Determine the power developed by the force the instant the block has moved s = 1.5 ft.
We have the familiar system shown below. The surface is frictionless except for two rough patches both of which have the same coefficient of kinetic friction uk with the mass but possibly different lengths L1 and L2. The positive directions for both masses are shown as well. The masses are released from rest. It turns out that the mass m spends the same amount of time over both patches. + m L1, JK L2, lk M Question 1 1 pts...
A 5 kg block is released from rest on a plane with a rough surface that is inclined at 25 degree. The coefficient of kinetic friction between the block and the plate is 0.2 and the coefficient of state friction between the block and the plane is 0.5. Draw a free body diagram of the block. What is the acceleration of the block? For the system below, m1 = 10 kg and m2 = 15 kg. The table and pulley...
1
45 kg is released from rest from the top of a rough ramp, with Mass - coefficient of kinetic friction 0.25 between the block and the incline, of height 3.2 m and length d 5.5 m. At the bottom of the ramp, the mass slides on a horizontal, frictionless surface until it compresses a spring of spring constant k 2. 110 N/m. a. Calculate the speed of the mass at the bottom of the ramp? b. How far does...
3. Two masses are connected by a string passing over a frictionless pulley as in the figure. The pulley is a 5 kg, 0.5 m radius ring with five 1 kg spokes. The ramp has a kinetic friction coefficient uk = 0.2. What is the acceleration of the mass on the left? Answer: 1.94 m/s2 10kg
A solid block of mass 60.0 kg starts from rest and slides down a rough surface with a length of 10.0 m where the coefficient of friction is uk=0.20. The surface is inclined at 40.0°. After sliding 10 meters down the incline it hits a spring with a spring constant of ks = 550.0 N/m. Draw a freebody Diagram indicating all forces. Write out and solve the force and energy equations. How high is the block above the spring at...
An object with a mass, m = 5 kg, is released from rest at the top of the ramp. The length of the ramp is 2.3 m. The object slides down the ramp reaching a speed of 2.1 m/s at the bottom. a) If the friction force between the ramp and the object is 3 N, find the angle between the ramp and the horizontal theta (in degrees). b) What speed (in m/s) does the object reach at the bottom...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as shown. The mass of the crate is 55 kg and the coefficient of kinetic friction M = 0.35. a) What applied force is required to keep the box moving at a constant acceleration of 3m/s2 ? b) What applied force is needed to keep the box moving at a constant speed, that is, no acceleration? (2 pts.) 3. A 60-kg skier starts from rest...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of p. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of 0 with the horizontal. The box was initially travelling to the right at speed v = 1.3" If M =9.7kg,...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of u. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of with the horizontal. The box was initially travelling to the right at speed u = 1.5". If M = 8.7kg,...
The 52-lb block rests on the rough surface for which the coefficient of kinetic friction is mu_k = 0.2. A force F = (40 + s^2) lb, where s is in ft, acts on the block in the direction shown. The spring is originally unstretched (s = 0) and the block is at rest. (Figure 1) Part A Determine the power developed by the force the instant the block has moved s = 1.5 ft.
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