PHY 1010 Chapter 4 Activity: Forces

1. Slides 33 35 of the PowerPoint describes Newtons Law of Universal Gravitation:

where is the universal gravitational constant. Considering that on Earth you are subject to the acceleration of gravity , and , where is your mass in ,

where and are the mass and radius of the Earth, respectively. If you weigh as much on the Moon, calculate the mass of the Moon using the radius of the Moon , and vice versa. Check your calculated values against their knowns, how close are they to one another? Is it a good estimate to say you weigh as much on the Moon? You can find the values of , , , and on this NASA reference page:

https://nssdc.gsfc.nasa.gov/planetary/factsheet/moonfact.html

2. Calculate the net force & acceleration (with direction!) on the object in the diagram below:

3. Draw a free body diagram depicting the various forces at play in these static systems:

a. Mass & pulley system on a frictionless inclined plane:

b. Gondola lift:

c. Mass on an inclined plane (with friction):

Our Service Charter

1. Professional & Expert Writers: Homework Discussion 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 Homework Discussion 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. Homework Discussion is known for 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 Homework Discussion, we have put in place a team of experts who answer to all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.