A ball (i.e., a hollow sphere), sliding on a horizontal friction less surface at 20 m/s,...
A ball (i.e., a hollow sphere), sliding on a horizontal friction less surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
Homework Answers
0.5 m v^2 = 0.5 mu^2 + 0.5 I w^2
m v^2 = m u^2 + (2/3) m r^2 u^2/r^2
20^2 = u^2 + (2/3) u^2
400 = 1.67 u^2
u = 15.49 m/s
Comment in case any doubt please rate my answer....
Add Answer to:
A ball (i.e., a hollow sphere), sliding on a horizontal friction
less surface at 20 m/s,...
A ball (i.e., a hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters...
A ball (i.e., a hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
A ball(i.e., hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters a rough...
A ball(i.e., hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
A 5-kg sled is sliding on a horizontal rough surface with a speed of 18 m/s....
A 5-kg sled is sliding on a horizontal rough surface with a speed of 18 m/s. The coefficier kinetic friction between the block and surface is 0.15. After travelling 25-m, it encounters as covered hill (where friction can be ignored) and slides uphill. The hill makes an angle of 38。 horizontal. (a) How much work is done against friction during the 25-m horizontal travel? the maximum elevation on the hill the block reaches? (c) How much work is done against...
A hollow ball with mass m = 0.1 kg and radius R = 5 cm is...
A hollow ball with mass m = 0.1 kg and radius R = 5 cm is sliding across a flat frictionless surface with an initial speed v = 5 m/s. At x = 0, it encounters a patch of ground with coefficient of kinetic friction μk = 0.3. The ball is initially not rotating but the friction causes it to start spinning. How far will it travel along that surface before it begins rolling without slipping. For this problem, assume...
1. (20 points) A hollow sphere of radius r and mass m starts from rest and...
1. (20 points) A hollow sphere of radius r and mass m starts from rest and rolls down the mountainside and then up the opposite side, as shown in Figure 1. The initial height is Ho. The rough part prevents slipping while the smooth part has no friction. The horizontal surface is smooth. How high, in terms of Ho will the sphere roll up the other side? Rough Smooth
A box of unknown mass is sliding with an initial speed Vi= 5.70 m/s across a...
A box of unknown mass is sliding with an initial speed Vi= 5.70 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d= 2.30 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
A box of unknown mass is sliding with an initial speed vi = 5.00 m/s across...
A box of unknown mass is sliding with an initial speed vi = 5.00 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.60 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
A box of unknown mass is sliding with an initial speed vi = 5.80 m/s across...
A box of unknown mass is sliding with an initial speed vi = 5.80 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.30 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box (in m/s) after sliding across the rough section of flooring.
1. (20 points) A hollow sphere of radius r and mass m starts from rest and rolls down the mountainside and then up...
1. (20 points) A hollow sphere of radius r and mass m starts from rest and rolls down the mountainside and then up the opposite side, as shown in Figure 1.The initial height is Ho. The rough part prevents slipping while the smooth part has no friction. The horizontal surface is smooth. How high, in terms of Ho. will the sphere roll up the other side? Smooth Rough Ho
Do not use energy conservation. Because of friction, energy isn't conserved. 2. A bowling ball is...
Do not use energy conservation.
Because of friction, energy isn't conserved.
2. A bowling ball is thrown down an alley with initial velocity vo and no rotation around its center of mass. The ball is thrown in such a way that it initially slides before beginning to roll. The ball has mass m, coefficient of static friction Hls, and coefficient of sliding friction plk. Show that the velocity of the ball when it begins to roll without slipping is vo....
A ball (i.e., a hollow sphere), sliding on a horizontal frictionless surface at 20 m/s, encounters a rough surface and begins to roll. Assuming that energy is conserved what is the speed of the ball after it begins to roll?
1. (20 points) A hollow sphere of radius r and mass m starts from rest and rolls down the mountainside and then up the opposite side, as shown in Figure 1. The initial height is Ho. The rough part prevents slipping while the smooth part has no friction. The horizontal surface is smooth. How high, in terms of Ho will the sphere roll up the other side? Rough Smooth
1. (20 points) A hollow sphere of radius r and mass m starts from rest and rolls down the mountainside and then up the opposite side, as shown in Figure 1.The initial height is Ho. The rough part prevents slipping while the smooth part has no friction. The horizontal surface is smooth. How high, in terms of Ho. will the sphere roll up the other side? Smooth Rough Ho
Do not use energy conservation.
Because of friction, energy isn't conserved.
2. A bowling ball is thrown down an alley with initial velocity vo and no rotation around its center of mass. The ball is thrown in such a way that it initially slides before beginning to roll. The ball has mass m, coefficient of static friction Hls, and coefficient of sliding friction plk. Show that the velocity of the ball when it begins to roll without slipping is vo....
Most questions answered within 3 hours.
-
he amount of tea leaves in a can from a particular production
line is normally distributed...
asked 5 minutes ago -
1. Why is it that the second exposure to an allergen,
and not necessarily the first,...
asked 9 minutes ago -
How many kilocalories of heat does an expenditure of 703 kJ
produce?
_____ kcal
A pound...
asked 11 minutes ago -
A steel rod with a length of l = 1.55 m and a cross section of...
asked 10 minutes ago -
Question 1
The following are all elements of strategic thinking
except:
Question 1 options:
A sense...
asked 7 minutes ago -
After finding the sample proportion , and the margin of Error E,
express the confidence interval...
asked 23 minutes ago -
Topic: SLEEP (anything related to sleep is
acceptable)
Appropriate resource: website, articles,
Support Groups/Resources, Books, Videos,...
asked 21 minutes ago -
1980
1985
1990
1995
2000
2005
Pi(0); Qi(O)
(1);(1)
Apples
.692,19.2
.684,17.3
.719,19.6
.835,18.9
.927,17.5
.966,16...
asked 27 minutes ago -
Using the data in the following table, calculate:
A. Average return and standard deviation for each...
asked 41 minutes ago -
A health care professional wishes to estimate the birth weights
of infants. How large a sample...
asked 58 minutes ago -
You are the manager for a large department within a company, and
you have received a...
asked 50 minutes ago -
Name and draw the chemical structure of the three aromatic amino
acids. Which groups in an...
asked 59 minutes ago