mg 10 1. The application of a horizontal force Fp results in a block of mass m moving at constant speed up a frictionless incline (making an angle 6
View the step-by-step solution to:

Question

Screenshot_20191014-214537_Snapchat.jpg777.jpgUnfortunately, I've

been doing the questions for hours and I cannot solve them. I worked in groups and just found all of the problems difficult below, would you be able to see if you could solve these?Screenshot_20191014-214533_Snapchat.jpg8888.jpg99999.jpg

Screenshot_20191014-214533_Snapchat.jpg8888.jpg99999.jpg

mg
10
1. The application of a horizontal force Fp results in a block of mass m moving at constant
speed up a frictionless incline (making an angle 6 with the horizontal) for a distance As.
(a) How much work does the normal force do? (b) How much work does the force Fp do in
terms of m, g, 8, and As? (e) Which force lifts the block vertically?
FIG. 1. Mass and spring system.
2. A mass (m = 0.8 kg) is pressed down on a vertical spring (k = 100 N/m) until the
spring compresses by d = 0.15 m from its non-perturbed length. The block is then released
from rest and allowed to ascend. The block is not connected to the end of the spring so it
may rise as depicted in the figure. Does the block, in fact, rise above the end of the spring?
If so, by how much distance?

Screenshot_20191014-214537_Snapchat.jpg777.jpg

3. A block weighing 10 Newtons is dropped from a height h = 12 cm above a (correctly
calibrated) spring balance with k = 1000 N/m. What maximum weight will the balance
read momentarily?
B
h
4. Two blocks (my = 1 kg, mg = 2 kg) are attached by a light cord as depicted in
the figure. The hanging block is released from rest and falls to the ground from a height
h = 0.50 m. The block on the table consequently slides a total distance d = 0.80 m.
Determine the coefficient of kinetic friction between table and block.
5. A uniform chain of length 8.00 m initially lies stretched out on a horizontal table. (a)
If the coefficient of static friction between the chain and table is 0.600, show that the chain
will begin to slide off the table if at least 3.00 m of it hangs over the edge of the table. (b)
Determine the speed of the chain as all of it leaves the table, given that the coefficient of
kinetic friction between the chain and table is 0.400. Hint: Use energy methods and locate
the hanging portion of the chain by its center.

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes