University | Nanyang Technological University (NTU) |
PH1801: Foundations of Physics I Homework, NTU, Singapore The following drawing shows two frictionless inclines that begin at ground level (h -0 rn) and slope upward at the same angle 8
Question
The following drawing shows two frictionless inclines that begin at ground level (h -0 rn) and slope upward at the same angle 8. One track is longer than the other, however. Identical blocks are projected up each track with the same initial speed On the longer track the block slides upward until it reaches a maximum height H above the ground.
On the shorter track, the block slides upward, flies off the end of the track at a height Hi above the ground, and then follows the parabolic trajectory of projectile motion. At the highest point of this trajectory, the block is a height If: above the end of the track. The initial total mechanical energy of each block is the same and Is all kinetic energy. Assume that the air resistance is negligible, and model each block as a point mass.
(1) When the block on the longer track reaches its maximum height, is Its final total mechanical energy all kinetic energy, all potential energy, or some of each? Justify your answer.
(ii) When the block on the shorter track reaches the top of its trajectory after leaving the track, Is its final total mechanical energy all kinetic energy, all potential energy or some of each? Justify your answer.
(iii) Which is the greater height above the ground: H or Hi -IV Why? (You have to provide a qualitative explanation.)
(iv) If the initial speed of each block is 1t = 7.00 m/s, each incline slopes upward at an angle of 6 = 50.0°, and the block on the shorter track leaves the track at a height of Hi = 1.25 m above the ground, find
(a) the height H for the block on the longer track (2 decimal places needed)
(b) the total height Hi -H: for the block on the shorter track (2 decimal places needed)
- HRM358: Read the following article from Sage Handbook of Prejudice, Stereotyping and Discrimination: Diversity and Inclusion in the Workplace Assignment, SUSS, Singapore
- PSY353: Positive Psychology End-of-Course Assignment, SUSS: Appraise your own well-being levels with reference to theories and evidence from positive psychology
- ANL355: Applied Operations Research Assignment, SUSS, Singapore: Johnny Chew recently accepted an offer from SUSS Business School to major in Business Analytics
- Design and analysis for professional psychology Assignment, JCU, Singapore: To complete this assessment, you will report findings for a study based on the data and information provided
- Accounting Theory and Accountability Assignment, MU, Singapore: Joel Gemunder, the CEO of Omnicare, retired on July 31, almost exactly one year after his company announced
- HRM358: Diversity and Inclusion in the Workplace Assignment, SUSS, Singapore: Overcoming biases requires to you reflect on how you can, challenge and correct bias to improv
- HRM375: Interviewing Techniques Assignment, SUSS, Singapore: Design and create a complete set of suitable interview questions relevant to the job position of Executive
- HRM375: Interviewing Techniques Assignment, SUSS, Singapore: In an HR selection interview, active listening plays a critical role as it is one of the strategies employed
- Cybersecurity Capstone projects Other, NTU, Singapore: Identify at least 1 risk related to the incident that will affect a company’s cybersecurity goal
- FMT205: Fundamentals of Facilities Management Assignment, SUSS, Singapore: Examine and describe FIVE (5) common challenges faced by facilities managers in the management
UP TO 15 % DISCOUNT