Your Perfect Assignment is Just a Click Away

Starting at $8.00 per Page

100% Original, Plagiarism Free, Customized to Your instructions!


Energy and Force Gravity Work Required to Move at Constant Speed Questions Discussion

Energy and Force Gravity Work Required to Move at Constant Speed Questions Discussion

Question Description

1. A 550 kg crate rests on the floor:

a) How much work is required to move it at constant speed 2 meters along the floor against a frictional force of 150 N ?

b) How much work is required to lift it vertically at constant speed 2 meters against the force of gravity?

2. Calculate the kinetic energy of a 55 kg person running at a speed of 9.0 m/s.

3. A 65 kg hiker starts at an elevation of 1500 m and climbs to the top of a 2600 m peak.

a) What is the hiker’s change in potential energy?

b) What is the minimum work required of the hiker?

c) Considering that the only force operating on the hiker is gravity, can the actual work be more than this minimum work (for example suppose the hiker does not climb straight up) ? Explain.

d) In the real world there are forces other than gravity which act on the hiker, such as friction, air resistance, etc.. Considering the real world, can the actual work done be more than the minimum work, even if the hiker climbs straight up? Explain.

"Place your order now for a similar assignment and have exceptional work written by our team of experts, guaranteeing you A results."

Order Solution Now

Our Service Charter

1. Professional & Expert Writers: Eminence Papers only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Eminence Papers are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Eminence Papers are known for the timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Eminence Papers, we have put in place a team of experts who answer all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.