*22. The concepts in this problem are similar to those in Multiple- Concept Example 4, except that the force doing the work in this prob- lem is the tension in the cable. A rescue helicopter lifts a 79-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 11 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and (c) the person's weight? (d) Use the work-energy theorem and find the final speed of the person.

*22. The concepts in this problem are similar to those in Multiple- Concept Example 4, except that the force doing the work in this prob- lem is the tension in the cable. A rescue helicopter lifts a 79-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 11 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and (c) the person's weight? (d) Use the work-energy theorem and find the final speed of the person.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 79.5-kg water-skier has an initial speed of 7.4 m/s. Later, the speed increases to 10.6 m/s. Determine the work done by the net external force acting on the skier.
A 600 N person climbs a ladder at a constant speed. The person climbs up 12 meters in a time of 20 seconds. What is the work done and the power exerted?
The only force acting on a 4.1 kg canister that is moving in an xy plane has a magnitude of 2.6 N. The canister initially has a velocity of 3.5 m/s in the positive x direction, and some time later has a velocity of 7.8 m/s in the positive y direction. How much work is done on the canister by the 2.6 N force during this time? Number i Units (>)
A plane having a mass of 22,000kg lands on an aircraft carrier. The plane is moving horizontally at 70 m/s when its tailhook grabs hold of the arresting cable. The cable brings the plane to a stop in a distance of 90 m. a) How much work is done on the plane by the arresting cable? b) What is the force(assumed constant) exerted on the plane by the cable?
help
In the movie Independence Day (mild spoilers, but old movie) Captain Steven Hiller (played by Will Smith) pulls an alien wrapped in a parachute across the desert. Hiller pulls the parachute/alien with a constant force of 259. N for a distance of 2.8 x 105 m. How much work did he do?
The only force acting on a 1.0 kg canister that is moving in an xy plane has a magnitude of 4.1 N. The canister initially has a velocity of 3.9 m/s in the positive x direction, and some time later has a velocity of 7.9 m/s in the positive y direction. How much work is done on the canister by the 4.1 N force during this time?
A7.1 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. The force F is applied to the body at t = 0, and the graph records the position of the body at 0.50 s intervals. How much work is done on the body by the applied force F between t = 0 and t = 1.2 s? 0.5 s 1.0 s 1.5 s 2.0 s 0.2 (0.4 0.6 0.8 х (m) Number Units
A loaded grocery cart is rolling across a parking lot in a strong wind. You apply a constant force F⃗ =(34N)i^−(44N)j^ to the cart as it undergoes a displacement s⃗ =(−8.6m)i^−(3.5m)j^. How much work does the force you apply do on the grocery cart?
The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the force doing the work in this problem is the tension in the cable. A rescue helicopter lifts a 82.3-kg person straight up by means of a cable. The person has an upward acceleration of 0.668 m/s² and is lifted from rest through a distance of 9.10 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and (c) the person's weight? (d) Use the work-energy theorem and find the final speed of the person. t tou