The 190-lb carriage has an initial velocity of 10.3 ft/sec down
the incline at A, when a constant force of 65 lb is
applied to the hoisting cable as shown. Calculate the velocity of
the carriage when it reaches B. Show that in the absence
of friction this velocity is independent of whether the initial
velocity of the carriage at A was up or down the
incline.
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Homework Answers
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The 190-lb carriage has an initial velocity of 10.3 ft/sec down
the incline at A, when...
340-lb carriage has an initial velocity of 6.3 ft/sec down the incline at A, when a...
340-lb carriage has an initial velocity of 6.3 ft/sec down the
incline at A, when a constant force of 120 lb is applied to the
hoisting cable as shown. Calculate the velocity of the carriage
when it reaches B. Show that in the absence of friction this
velocity is independent of whether the initial velocity of the
carriage at A was up or down the incline.
3. The 100 lb block is sliding down the 10° slope with an initial velocity of...
3. The 100 lb block is sliding down the 10° slope with an initial velocity of 8 ft/s when it is acted on by a F = 20.4 lb force. If the coefficient of kinetic friction between the block and the slope is MK = 0.3, determine how much time it takes for the block to reach a velocity of 10 ft/s up the slope. (4.51s) F = 20-t lb 100 lb V. = 8 ft/s A V;= 10 ft/s...
A 736-lb object is launched from the ground with an initial upward velocity of 60 ft/sec....
A 736-lb object is launched from the ground with an initial upward velocity of 60 ft/sec. The atmosphere resists the motion of the object with a force of 3 lb for each ft/sec of speed. Assuming that the only other force acting on the object is gravity, find the time it takes for the object to reach its maximum height:
The 78-1b crate slides down the curved path in the vertical plane. If the crate has...
The 78-1b crate slides down the curved path in the vertical plane. If the crate has a velocity of 6.9 ft/sec down the incline at A and a velocity of 34.2 ft/sec at B, compute the work Uf done on the crate by friction during the motion from A to B. 6.9 ft/sec 250 B 34.2 ft/sec 44 Answer: Up = ft-lb
70kg is sliding up on a hill side at an A mass m incline angle 0...
70kg is sliding up on a hill side at an A mass m incline angle 0 = 30°. The initial velocity of the mass is vi 30m/s, and no external force is applied to the mass on the incline. The height of the structure ish = 25 m Note that the static friction coefficient of snow is i, = 0.5, and kinetic friction coefficient of snow is 0.4. Use the principles of energy and work to find the answen to...
A 28-lb block slides down a 30° inclined plane with an initial velocity of 2 ft/s....
A 28-lb block slides down a 30° inclined plane with an initial velocity of 2 ft/s. Part A 0.29 Determine the velocity of the block in 3 s if the coefficient of kinetic friction between the block and the plane is Express your answer to three significant figures and include the appropriate units. Val Units Submit Request Answer
A block weighing 14 lb is placed on an incline plane and connected to a 10...
A block weighing 14 lb is placed on an incline plane and
connected to a 10 lb block, as shown in the diagram. The pulley is
frictionless. The coefficient of friction between block and plane
is 1/7. For what two values of angle ? will the
system move with constant velocity?
(Hint: You need the identity relating sin? and cos?; find the
angles when block is sliding down and up)
13-7. The 10-lb block has a speed of 4 ft/s when the force of F =...
13-7. The 10-lb block has a speed of 4 ft/s when the force of F = (8t^2) lb is applied. Determine the velocity of the block when it moves s = 30 ft. The coefficient of kinetic friction at the surface is mus = 0.2.
can someone solve all parts please The 30 kg mass has a speed of 2m/sec in...
can someone solve all parts please
The 30 kg mass has a speed of 2m/sec in the position shown and a constant force of 20N is applied on it as shown and this force is acting on the mass for another 3 meters down the incline and then disappears. After another 7 meters the mass hits a loss of energy at impact to spring and Dynamic Friction coefficient is 0.25 Spring Constant is 200 kN/m A) What is the speed...
A 32-lb suitcase slides from rest 20 ft down the ramp. The suitcase has an initial...
A 32-lb suitcase slides from rest 20 ft down the ramp. The suitcase has an initial velocity down the ramp of 11 ft/s and the coefficient of kinetic friction along AB 0.23 20 ft 4 ft Part A How long does it take to go from A to C? Express your answer to three significant figures and include the appropriate units. Value Units Submit Request Answer Part B Determine the point where it strikes the ground at C Express your...
340-lb carriage has an initial velocity of 6.3 ft/sec down the
incline at A, when a constant force of 120 lb is applied to the
hoisting cable as shown. Calculate the velocity of the carriage
when it reaches B. Show that in the absence of friction this
velocity is independent of whether the initial velocity of the
carriage at A was up or down the incline.
3. The 100 lb block is sliding down the 10° slope with an initial velocity of 8 ft/s when it is acted on by a F = 20.4 lb force. If the coefficient of kinetic friction between the block and the slope is MK = 0.3, determine how much time it takes for the block to reach a velocity of 10 ft/s up the slope. (4.51s) F = 20-t lb 100 lb V. = 8 ft/s A V;= 10 ft/s...
The 78-1b crate slides down the curved path in the vertical plane. If the crate has a velocity of 6.9 ft/sec down the incline at A and a velocity of 34.2 ft/sec at B, compute the work Uf done on the crate by friction during the motion from A to B. 6.9 ft/sec 250 B 34.2 ft/sec 44 Answer: Up = ft-lb
70kg is sliding up on a hill side at an A mass m incline angle 0 = 30°. The initial velocity of the mass is vi 30m/s, and no external force is applied to the mass on the incline. The height of the structure ish = 25 m Note that the static friction coefficient of snow is i, = 0.5, and kinetic friction coefficient of snow is 0.4. Use the principles of energy and work to find the answen to...
A 28-lb block slides down a 30° inclined plane with an initial velocity of 2 ft/s. Part A 0.29 Determine the velocity of the block in 3 s if the coefficient of kinetic friction between the block and the plane is Express your answer to three significant figures and include the appropriate units. Val Units Submit Request Answer
A block weighing 14 lb is placed on an incline plane and
connected to a 10 lb block, as shown in the diagram. The pulley is
frictionless. The coefficient of friction between block and plane
is 1/7. For what two values of angle ? will the
system move with constant velocity?
(Hint: You need the identity relating sin? and cos?; find the
angles when block is sliding down and up)
13-7. The 10-lb block has a speed of 4 ft/s when the force of F = (8t^2) lb is applied. Determine the velocity of the block when it moves s = 30 ft. The coefficient of kinetic friction at the surface is mus = 0.2.
can someone solve all parts please
The 30 kg mass has a speed of 2m/sec in the position shown and a constant force of 20N is applied on it as shown and this force is acting on the mass for another 3 meters down the incline and then disappears. After another 7 meters the mass hits a loss of energy at impact to spring and Dynamic Friction coefficient is 0.25 Spring Constant is 200 kN/m A) What is the speed...
A 32-lb suitcase slides from rest 20 ft down the ramp. The suitcase has an initial velocity down the ramp of 11 ft/s and the coefficient of kinetic friction along AB 0.23 20 ft 4 ft Part A How long does it take to go from A to C? Express your answer to three significant figures and include the appropriate units. Value Units Submit Request Answer Part B Determine the point where it strikes the ground at C Express your...
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