Suppose a 1350-kg elevator car is lifted a distance 41 m by its cable at a...
Suppose a 1350-kg elevator car is lifted a distance 41 m by its cable at a constant speed, assuming the frictional force on the elevator has a constant value of 1575 N.
Calculate the work done on the elevator by its cable, in joules.
Calculate the work done by the gravitational force on the elevator, in joules, during this process.
Calculate the total work done on the elevator, in joules.
Homework Answers
Add Answer to:
Suppose a 1350-kg elevator car is lifted a distance 41 m by its
cable at a...
(a) Calculate the work done (in J) on a 1450 kg elevator car by its cable...
(a) Calculate the work done (in J) on a 1450 kg elevator car by its cable to lift it 39.0 m at constant speed, assuming friction averages 145 N (b) What is the work done (in J) on the lift by the gravitational force in this process? (c) What is the total work done (in 1) on the lift?
1. Calculate the work done in kilojoules on a 1,146 kg elevator car by its cable...
1. Calculate the work done in kilojoules on a 1,146 kg elevator car by its cable to lift it 42 m at constant speed, assuming friction averages 135.9 N. 2. What is the cost of operating a 4.4 W electric clock for a year if the cost of electricity is $0.08 per kWh ? 3. Find the final speed for a skier in a downhill ski race who skies 80 m along a 24.7º slope neglecting friction if he or...
help with part 5 1. A 125-kg load is lifted 12.0 m vertically with an acceleration...
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
A cable lifts a 1300-kg elevator at a constant velocity for a distance of 35 m....
A cable lifts a 1300-kg elevator at a constant velocity for a distance of 35 m. What is the work done by each of the following?
Question 5.2a: A 1350-kg car is traveling with an initial speed of 26.0 m/s. Determine the...
Question 5.2a: A 1350-kg car is traveling with an initial speed of 26.0 m/s. Determine the car's speed after ?2.15 ? 105 J of net work is done on the car. m/s Question 5.2b: A 11.6-kg box is sliding across a horizontal floor. It has an initial speed of 1.40 m/s and the only force acting on it is kinetic friction with magnitude fk = 3.00 N. Determine the distance the box will travel before coming to rest. m
An elevator car with a mass of equal to 800 kg is pulled upward at constant...
An elevator car with a mass of equal to 800 kg is pulled upward at constant speed. If the elevator moves a distance of 5m, how much work was done by the cable which pulls upward on the elevalor through that distance. 12 vg40000 The cable does no work, because there is no change in kinetic energy B. The cable does 40,000 J of work, because it must be equal to gain in potential energy The cable does more than...
A box initially at rest of 15kg is lifted with a cable a distance d 570m...
A box initially at rest of 15kg is lifted with a cable a distance d 570m on a frictionless surface at a height h = 2.50 m, where it stops. a) How much work is done by the force of gravity during the survey? (10 points) b) How much work is done by the tension force? F4 FS
An elevator cable breaks and the 1550 kg elevator drops 30 m onto a large spring...
An elevator cable breaks and the 1550 kg elevator drops 30 m onto a large spring at the bottom of the shaft. The stiffness of the spring is k = 90, 000 N/m. Calculate the kinetic energy and velocity of the elevator after falling the 30 m distance. Find the distance of maximum compression of the spring. Determine the maximum acceleration of the elevator. What is the fastest velocity reached by the elevator during the fall?
A cable lowers a 1400 kg elevator so that the elevator's speed increases from zero to...
A cable lowers a 1400 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a vertical distance of 5.6 m . What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator and Earth.) What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator only.)
A 270-kg load is lifted 24.0 m vertically with an acceleration a=0.170 g by a single...
A 270-kg load is lifted 24.0 m vertically with an acceleration a=0.170 g by a single cable. a. Determine the tension in the cable. b. Determine the net work done on the load. c. Determine the work done by the cable on the load. d. Determine the work done by gravity on the load. e. Determine the final speed of the load assuming it started from rest.
(a) Calculate the work done (in J) on a 1450 kg elevator car by its cable to lift it 39.0 m at constant speed, assuming friction averages 145 N (b) What is the work done (in J) on the lift by the gravitational force in this process? (c) What is the total work done (in 1) on the lift?
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
An elevator car with a mass of equal to 800 kg is pulled upward at constant speed. If the elevator moves a distance of 5m, how much work was done by the cable which pulls upward on the elevalor through that distance. 12 vg40000 The cable does no work, because there is no change in kinetic energy B. The cable does 40,000 J of work, because it must be equal to gain in potential energy The cable does more than...
A box initially at rest of 15kg is lifted with a cable a distance d 570m on a frictionless surface at a height h = 2.50 m, where it stops. a) How much work is done by the force of gravity during the survey? (10 points) b) How much work is done by the tension force? F4 FS
An elevator cable breaks and the 1550 kg elevator drops 30 m onto a large spring at the bottom of the shaft. The stiffness of the spring is k = 90, 000 N/m. Calculate the kinetic energy and velocity of the elevator after falling the 30 m distance. Find the distance of maximum compression of the spring. Determine the maximum acceleration of the elevator. What is the fastest velocity reached by the elevator during the fall?
Most questions answered within 3 hours.
-
What is the relationship, if any, between the pH (9.27) at the half
equivalence point and...
asked 8 minutes ago -
1. Suppose the probability that a library patron checks out a
science fiction book is 0.08....
asked 14 minutes ago -
A) A solution contains 1.49×10-2 M
potassium phosphate and
6.81×10-3 M potassium
bromide.
Solid silver acetate...
asked 28 minutes ago -
Mrs. A has saved $1,200,000 and is about to retire. If she can
earn 3.75% annually...
asked 30 minutes ago -
Are soft drink preferences regional? In an effort to find out, a
market researcher surveyed 150...
asked 36 minutes ago -
Using the textbook, Topic Materials, and your own research,
write a 100-250 word response to each...
asked 47 minutes ago -
What mass of precipitate do you expect when mixing 125 mL of a
solution containing 4.88...
asked 47 minutes ago -
Novak Corporation sells computers under a 2-year warranty
contract that requires the corporation to replace defective...
asked 52 minutes ago -
why
do inversion heterozygotes supress the appearebce of recombinat
progeny that result from crossover events?
asked 1 hour ago -
A two-slit pattern is viewed on a screen 1.40 m from the slits.
What is the...
asked 1 hour ago -
Which of the following scenarios contain biased samples? Select
all that apply. That's not right.
a....
asked 1 hour ago -
[Java] Create a class called FileExercises that contains the
following method
Method encrypt that does not...
asked 1 hour ago