How much work is done by the tension in the cable

Assignment Help Physics
Reference no: EM13317890

A rescue helicopter lifts a 60 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2 and is lifted from rest through a distance of 7 m.

(a) What is the tension in the cable?

(b) How much work is done by the tension in the cable?

(c) How much work is done by the person's weight?

(d) Use the work-energy theorem and find the final speed of the person.

Reference no: EM13317890

Questions Cloud

Estimate cross sectional dimension of bar under strain : A 1000 in diameter solid steel (p= 0.303) bar is 10.0 ft long. Under a tensile load. (a) Estimate the lateral strain experienced by the bar (b) Estimate the cross sectional dimension of the bar when under strain
Estimate the net outward force on a passengers eardrum : An airplane takes off at sea level and climbs to a height of 480 m. Estimate the net outward force on a passenger's eardrum assuming the density of air is approximately constant
What is the first order decay coefficient in day-1 : A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of the tank is 8 m3/day. If the influent benzene concentration of 265 ug/L and the effluent concentration is 12 ug/L
Prepare the cad drawings : Need to prepare the CAD drawings
How much work is done by the tension in the cable : A rescue helicopter lifts a 60 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2, How much work is done by the tension in the cable
Determine what is the volume of the lake in cubic feet : Nitrification, the conversion of ammonia to nitrate (NH3 -> NO3-) occurs in the lake according to first - order kinetics. One stream feeds the lake and one stream empties the lake with the flow rate in both being 8 cfs
What is the flow speed in the narrower section : An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrower section
Calculate what should the sample volume be : The dissolved oxygen of sample water is 1.5 mg/L. At 25 C, the dissolved oxygen of the dilution water is 8.25 mg/L. You are told the BOD5 of the sample is 130 mg/L. You have a target final dissolved oxygen of 3.0 mg/L
What will the ammonia concentration be 10 miles downstream : The concentration of ammonia is 6 mg/L at one point in the river. If the first - order decay coefficient for the conversion of ammonia to nitrate is 0.05 day-1, what will the ammonia concentration be 10 miles downstream.

Reviews

Write a Review

Physics Questions & Answers

  What is the ratio of the current in bulb a

Two lightbulbs operate on the same potential difference. Bulb A has four times the power output of bulb B. What is the ratio of the current in bulb A to the current in bulb B?

  Find the magnitude and direction of the resultant field

Four charges are located in a plane as follows: q1 = -5 uC at (4,0) m; q2 = -3 uC at (4,4) m; q3 = -4 uC at (0,4) m; q4 = -2 uC at (0,0) m. Find the magnitude and direction of the resultant field at (2,2)

  Find the number of electrons passing through the device

The current supplied by a battery in a portable device is typically 0.131 A. Find the number of electrons passing through the device

  Find the largest electrical output

a river with a water temperature T(L)=20 degree C is to be used as the low temperature reservoir of a large power plant, what is the largest electrical output that the plant can deliver to its customers

  What is voltage difference between floor and hover-board

What is voltage difference between floor and hover-board

  Find the total kinetic energy of the automobile

An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of the automobile

  What is the horizontal distance from the bottom

A ladder 8.00 m long leans against the side of a building, what is the horizontal distance from the bottom of the ladder to the building

  Compute the power in the resistor

Consider an LR circuit with a variable inductor and with deltaVs=150 V, f=60Hz, R=5 ohms. Calculate the power in the resistor

  How much heat is gained by the cold water

70 grams of water at 85°C are mixed with an equal amount of water at 15°C in a completely insulated container. How much heat is gained by the cold water

  Illustratecar force exerted on the car by walls of cylinder

illustrate what is the magnitude of the normal force exerted on the car by the walls of the cylinder at point A (at the bottom of the vertical circle)?

  What is the tires pressure at the elevated temperature

A steel-belted radial automobile tire is inflated to a gauge pressure of 30.0lb/in^2, what is the tire's pressure at the elevated temperature

  Find the magnitude of the charge on the ion

An ion accelerated through a potential difference of 102 V experiences an increase in kinetic energy of 3.01 × 10?17 J

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd