Question

The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the...

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 86.8-kg person straight up by means of a cable. The person has an upward acceleration of 0.830 m/s2 and is lifted from rest through a distance of 10.5 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.

Homework Answers

Answer #1

ask in comment box if any doubts

in part c, workdone by the weight is negative due to weight is acting opposite of displacement .

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the...
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 90.3-kg person straight up by means of a cable. The person has an upward acceleration of 0.829 m/s2 and is lifted from rest through a distance of 13.6 m. (a) What is the tension in the cable? How much work is done by (b) the tension...
The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the...
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 88.2-kg person straight up by means of a cable. The person has an upward acceleration of 0.681 m/s2 and is lifted from rest through a distance of 7.55 m. (a) What is the tension in the cable? How much work is done by (b) the tension...
A rescue helicopter lifts a 94.8-kg person straight up by means of a cable. The person...
A rescue helicopter lifts a 94.8-kg person straight up by means of a cable. The person has an upward acceleration of 0.581 m/s2 and is lifted from rest through a distance of 13.0 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.
Multiple-Concept Example 5 reviews many of the concepts that play a role in this problem. An...
Multiple-Concept Example 5 reviews many of the concepts that play a role in this problem. An extreme skier, starting from rest, coasts down a mountain that makes an angle of 26.9 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.213. She coasts for a distance of 19.9 m before coming to the edge of a cliff. Without slowing down, she skis off the cliff and lands downhill at a point whose vertical...