A 62.0 kg mass of is slid up a θ = 34.0° incline by a motor...
A 62.0 kg mass of is slid up a θ = 34.0° incline by a motor driven cable that runs parallel to the incline. It moves at a constant 2.9 m/s speed for a a distance of 75.0 m up the incline. The coefficient of kinetic friction between the mass and the incline is μk = .32. (a) Calculate the total work done by the motor to move the mass in kiloJoules. (B) Calculate the average power produced by the motor during this process. Note: 1 hp = 746 W
Homework Answers
A 76.0 kg mass of is slid up a Q = 26.0° incline by a motor...
A 76.0 kg mass of is slid up a Q = 26.0° incline by a motor driven cable that runs parallel to the incline. It moves at a constant 1.5 m/s speed for a a distance of 55.0 m up the incline. The coefficient of kinetic friction between the mass and the incline is uk = .32. (a) Calculate the total work done by the motor to move the mass in kilojoules. X kj (b) Calculate the average power produced...
A mass m = 16 kg is pulled along a horizontal floor with NO friction for...
A mass m = 16 kg is pulled along a horizontal floor with NO friction for a distance d =7.5 m. Then the mass is pulled up an incline that makes an angle θ = 33° with the horizontal and has a coefficient of kinetic friction μk = 0.41. The entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 33° (thus on the incline it is parallel...
Only (a). (7.7.40) In the picture below, an 80.0 kg mass is dragged up an incline...
Only (a).
(7.7.40) In the picture below, an 80.0 kg mass is dragged up an incline by a cable attached to a winch. The position of the mass as a function of time is given by x(t) = Bt^4, where B = 0.03 m/s^4. x is measured by an axis which runs along the incline, as shown, x = 0 at the bottom of the incline and x = 10.0 m at the top of the incline. The cable is...
A mass m slides up an incline (with \theta\:θ= 30.34 degrees above the horizontal) until it...
A mass m slides up an incline (with \theta\:θ= 30.34 degrees above the horizontal) until it stops momentarily because of friction. The coefficient of static friction between the mass and incline is 0.53; the coefficient of kinetic friction between the mass and incline is 0.08. At a given instant, the mass is moving with speed of 6.59 m/s up the incline. At what later time (in seconds) will the mass come to a stop?
A mass m = 15 kg is pulled along a horizontal floor with NOfriction for...
A mass m = 15 kg is pulled along a horizontal floor with NO friction for a distance d =7.1 m. Then the mass is pulled up an incline that makes an angle θ = 30° with the horizontal and has a coefficient of kinetic friction μk = 0.38. The entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 30° (thus on the incline it is parallel...
A box (mass 25.8 kg) sits on a rough incline that makes an angle α =...
A box (mass 25.8 kg) sits on a rough incline that makes an angle α = 28.1o with the horizontal. A massless string is tied to the box, runs parallel to the incline, passes over a massless, frictionless pulley, and is tied to mass M hanging on the other end. Assume μs = 0.455 is the coefficient of static friction between the box and the surface of the plane. Find the maximum value of M, in kg, for which this...
An object with a mass of 60.0 kg is pulled up an inclined surface by an...
An object with a mass of 60.0 kg is pulled up an inclined surface by an attached rope, which is driven by a motor. The object moves a distance of 40.0 m along the surface at a constant speed of 3.5 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is negligible. (a) How much work (in kJ) is required to pull the object up the incline? kJ (b) What power (expressed in hp)...
Learning Goal: To use the principle of work and energy to determine characteristics of a mass...
Learning Goal:
To use the principle of work and energy to determine
characteristics of a mass being pulled up an incline and determine
the power that must be supplied to the system when the efficiency
of the input system is considered.
As shown, a 62 kg crate is pulled up a θ = 65 ∘incline by a
pulley and motor system. Initially at rest, the crate is pulled s =
2.9 m up along the incline. Undergoing constant acceleration, the...
A mass m = 12 kg is pulled along a horizontal floor with NO friction for...
A mass m = 12 kg is pulled along a horizontal floor with NO
friction for a distance d =6.5 m. Then the mass is pulled up an
incline that makes an angle θ = 25° with the horizontal and has a
coefficient of kinetic friction μk = 0.44. The entire
time the massless rope used to pull the block is pulled parallel to
the incline at an angle of θ = 25° (thus on the incline it is
parallel...
D | Question 2 1 pts A mass m slides up an incline (with 0 27.6...
D | Question 2 1 pts A mass m slides up an incline (with 0 27.6 degrees above the horizontal) until it stops momentarily because of friction. The coefficient of static friction between the mass and incline is 0.7; the coefficient of kinetic friction between the mass and incline is 0.4. At a given instant, the mass is moving with speed of 7.1 m/s up the incline. How far beyond this point along the incline will the mass move before...
A 76.0 kg mass of is slid up a Q = 26.0° incline by a motor driven cable that runs parallel to the incline. It moves at a constant 1.5 m/s speed for a a distance of 55.0 m up the incline. The coefficient of kinetic friction between the mass and the incline is uk = .32. (a) Calculate the total work done by the motor to move the mass in kilojoules. X kj (b) Calculate the average power produced...
Only (a).
(7.7.40) In the picture below, an 80.0 kg mass is dragged up an incline by a cable attached to a winch. The position of the mass as a function of time is given by x(t) = Bt^4, where B = 0.03 m/s^4. x is measured by an axis which runs along the incline, as shown, x = 0 at the bottom of the incline and x = 10.0 m at the top of the incline. The cable is...
Learning Goal:
To use the principle of work and energy to determine
characteristics of a mass being pulled up an incline and determine
the power that must be supplied to the system when the efficiency
of the input system is considered.
As shown, a 62 kg crate is pulled up a θ = 65 ∘incline by a
pulley and motor system. Initially at rest, the crate is pulled s =
2.9 m up along the incline. Undergoing constant acceleration, the...
A mass m = 12 kg is pulled along a horizontal floor with NO
friction for a distance d =6.5 m. Then the mass is pulled up an
incline that makes an angle θ = 25° with the horizontal and has a
coefficient of kinetic friction μk = 0.44. The entire
time the massless rope used to pull the block is pulled parallel to
the incline at an angle of θ = 25° (thus on the incline it is
parallel...
D | Question 2 1 pts A mass m slides up an incline (with 0 27.6 degrees above the horizontal) until it stops momentarily because of friction. The coefficient of static friction between the mass and incline is 0.7; the coefficient of kinetic friction between the mass and incline is 0.4. At a given instant, the mass is moving with speed of 7.1 m/s up the incline. How far beyond this point along the incline will the mass move before...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago