a) Two identical balls (mass m, radius r) roll with (translational or CM) velocity v along...
a) Two identical balls (mass m, radius r) roll with (translational or CM) velocity v along a flat surface. The balls then roll up inclines, one incline has friction, the other does not. Prove which ball reaches higher up its ramp.
b) Imagine a pulley wheel of mass mp and radius rp, and suspended over this pulley are two masses, m1 and m2. If m2 > m1 and m1 starts from rest at a position h lower than m2, how fast is the system moving by the time m2 falls to the initial height of m1
Homework Answers
Add Answer to:
a) Two identical balls (mass m, radius r) roll with
(translational or CM) velocity v along...
A hollow sphere of mass m = 0.35 kg and radius r = 64 cm rolls...
A hollow sphere of mass m = 0.35 kg and radius r = 64 cm rolls along a flat surface at an initial speed of v, and then up a curved ramp with radius of curvature 4.7 m without slipping, until it reaches a maximum angle of 12 degrees around the curve and starts to roll backward. What was the initial speed of the ball in units of meters/second?
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0∘ incline that is 10.0 m long. Calculate its translational speed when it reaches the bottom. Calculate its rotational speed when it reaches the bottom. What is the ratio of translational to rotational kinetic energy at the bottom?
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0∘ incline that is 10.0 m long. Calculate its translational speed when it reaches the bottom. Calculate its rotational speed when it reaches the bottom. What is the ratio of translational to rotational kinetic energy at the bottom?
4) A spring is compressed stored 1000 j of potential energy in it.Two identical masses of...
4) A spring is compressed stored 1000 j of potential energy in it.Two identical masses of 1 kg each are on either of side the spring.What is the velocity of the two balls after the spring is released? 5) A 2Kg mass is pushed with 10N of force and has 1N of friction opposing its motion.If it starts from rest how fast is it moving after 2s? 6)A wheel on a robot has a radius of0.2m and is rotating at...
Two spheres of equal mass M and equal radius R roll down an inclined plane as...
Two spheres of equal mass M and equal radius R roll down an
inclined plane as shown in the figure. One sphere is solid and the
other is a hollow spherical shell. The plane makes an angle ? with
respect to the horizontal. The spheres are released simultaneously
from rest at the top of the inclined plane and they each roll down
the incline without slipping.
The total distance each sphere rolls down the ramp (the
hypotenuse) is d. There...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0? incline that is 10.0m long. Part A Calculate its translational speed when it reaches the bottom. v= Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. w = Part C What is the ratio of translational to rotational kinetic energy at the bottom?...
2) Two solid rubber balls (one of mass m and radius r, and the other of...
2) Two solid rubber balls (one of mass m and radius r, and the other of mass M and radius R) roll without slipping up an incline. They are, initially, moving at 7.0 m/s. Eventually, they stop for a split second and then start to fall back down. Which ball goes higher? (15 points. Hint: find KE and Rotational KE for both). Calculate the height that each will reach (5 points). Hint: Use conservation of total mechanical energy). The moment...
A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from...
A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long. Part A Calculate its translational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. A Value Units Submit Request Answer Part B Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long.
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long.A) Calculate its translational speed when it reaches the bottom.B) Calculate its rotational speed when it reaches the bottom. C) What is the ratio of translational to rotational kinetic energy at the bottom? D) Avoid putting in numbers until the end so you can answer: do your...
Thanks so much ahead of time! A spherical shell of radius 0.43 m and mass 27...
Thanks so much ahead of time!
A spherical shell of radius 0.43 m and mass 27 kg initially rolls without slipping towards an incline at a linear speed of 9.1 m/s. If the ball rolls up an incline (inclined 35 degrees above the horizontal) without sliding. How high will it go? A professor holding a spinning wheel used for a demonstration brings the wheel to a stop by applying a constant, tangential friction force to the edge (his hand). The...
Two spheres of equal mass M and equal radius R roll down an
inclined plane as shown in the figure. One sphere is solid and the
other is a hollow spherical shell. The plane makes an angle ? with
respect to the horizontal. The spheres are released simultaneously
from rest at the top of the inclined plane and they each roll down
the incline without slipping.
The total distance each sphere rolls down the ramp (the
hypotenuse) is d. There...
2) Two solid rubber balls (one of mass m and radius r, and the other of mass M and radius R) roll without slipping up an incline. They are, initially, moving at 7.0 m/s. Eventually, they stop for a split second and then start to fall back down. Which ball goes higher? (15 points. Hint: find KE and Rotational KE for both). Calculate the height that each will reach (5 points). Hint: Use conservation of total mechanical energy). The moment...
A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long. Part A Calculate its translational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. A Value Units Submit Request Answer Part B Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and...
Thanks so much ahead of time!
A spherical shell of radius 0.43 m and mass 27 kg initially rolls without slipping towards an incline at a linear speed of 9.1 m/s. If the ball rolls up an incline (inclined 35 degrees above the horizontal) without sliding. How high will it go? A professor holding a spinning wheel used for a demonstration brings the wheel to a stop by applying a constant, tangential friction force to the edge (his hand). The...
Most questions answered within 3 hours.
-
A 0.035 mol sample of a weak acid, HA, is dissolved in 437 mL of
water...
asked 23 seconds ago -
a sample of Ar gas has a volume of 6.30 L with an unknown
pressure. the...
asked 1 minute ago -
The
serum cholesterol levels of a population of kids follow a normal
distribution with mean 155...
asked 21 minutes ago -
han discusses the racist practice of badlands, a bar
in the Castro
district of San Francisco,...
asked 32 minutes ago -
A sample of final exam scores is normally distributed with a
mean equal to 25 and...
asked 36 minutes ago -
An investor shorts 100 shares of a stock when the share price is
$50 and closes...
asked 40 minutes ago -
LLOP corporation just paid 4$ dividend per share, you expect the
dividend to grow 8% for...
asked 49 minutes ago -
if we subtract 1000 from 0001 is there overflow? (binary)
asked 57 minutes ago -
Hello, I need help with the function below, The language I am
using is Ocaml
open...
asked 59 minutes ago -
Explain how the presence of glucose represses the gal structural
genes?
asked 1 hour ago -
For the reaction CaI2+2AgNO3⟶2AgI+Ca(NO3)2 how many grams of
silver iodide, AgI, are produced from 56.5 g...
asked 1 hour ago -
Write an equation for hydrolysis via acid catalysis.
Using ethyl acetate, ethyl benzoate, ethyl formate or...
asked 1 hour ago