Question

A round rock of mass 500kg and radius 5m is balanced on the top of a...

A round rock of mass 500kg and radius 5m is balanced on the top of a hill. What force will you have to apply at its middle to make the rock fall down the hill? (draw a diagram and write down the equations you use)

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

For this Problem,Considering the round rock as solid sphere.

Hence the moment of inertia of solid sphere is used in the given solution.

For the rock there will be 2 forces namely Force of friction and applied force in the x direction.

In vertical direction there will be 2 forces namely Weight and normal force from Ground/Hill.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Warm up questions: Display will be a single object resting on a board balanced on top...
Warm up questions: Display will be a single object resting on a board balanced on top of a pedestal; the other will be two objects resting on a board balanced. You do not know precisely what objects you will have to work with 1. Draw a picture for both mass models. Select a coordinate system. Identify and label the quantities you can measure in this problem, such as masses and lengths. The unknown quantity in this problem is the locations...
Block 1 of mass m is on top of block 2 of mass 5m as shown...
Block 1 of mass m is on top of block 2 of mass 5m as shown in the figure. Block 2 is on a horizontal smooth plane, and a rope can pull horizontally on block 2. The static and kinetic friction coefficients between the surfaces of the two blocks are 5/8 and 1/2 respectively. What is the resulting acceleration of block 2 if a force F=4mg with g being the acceleration of gravity is applied to the rope? Basically the...
A hollow ball of mass 2.88 kg and radius 0.309 m sits at rest on top...
A hollow ball of mass 2.88 kg and radius 0.309 m sits at rest on top of a hill of height 6.88 m. The ball can either slide down the hill without rolling or roll down without slipping. What is the difference in the ball's speed (in m/s) at the bottom of the hill between these two scenarios?
4. A skier starts at the top of a hill with height H, skies down and...
4. A skier starts at the top of a hill with height H, skies down and then climbs a smaller hill. The smaller hill is shaped like a large snowball with a radius R. As the skier skies straight down the side, at what point does she los contact with the snowball and fly off at a tangent: at what angle α does a radial line from the center of the snowball to the skier make with the vertical? Ignore...
A small block of mass m sits on the center of a dome of radius R....
A small block of mass m sits on the center of a dome of radius R. (Just to be perfectly clear, a dome is an upside-down hemisphere, like the top of a silo.) It is perfectly balanced at the moment, but then a slight breeze comes along and pushes it off in one direction. The rock will pick up speed as it slides down the side of the dome, and at some point it will end up going fast enough...
A small rock with mass 0.20 kg is released from rest at point A, which is...
A small rock with mass 0.20 kg is released from rest at point A, which is at the top edge of a large, hemispherical bowl with radius R = 0.50 m. Assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume the rock slides rather then rolls. The work done by friction on the rock when it moves from point A to point B at the...
An eagle is circling looking for prey, it completes a circle of radius 10 m every...
An eagle is circling looking for prey, it completes a circle of radius 10 m every 5 s. Birds can use their skills to make air exert a force on them in any direction. a) Draw a diagrams of the eagle’s motion, indicate the velocity vector and the coordinate system. b) What are the linear and angular speed of the eagle? c) If the eagle increases its speed over thirty seconds, to complete one circle (r=10m) every 3s, calculate the...
An eagle is circling looking for prey, it completes a circle of radius 10 m every...
An eagle is circling looking for prey, it completes a circle of radius 10 m every 5 s. Birds can use their skills to make air exert a force on them in any direction. a) Draw a diagrams of the eagle’s motion, indicate the velocity vector and the coordinate system. (4 points) b) What are the linear and angular speed of the eagle? (3 points) c) If the eagle increases its speed over thirty seconds, to complete one circle (r=10m)...
A rock is tied to a string and spun in a circle of radius 1.4 m...
A rock is tied to a string and spun in a circle of radius 1.4 m as shown in the figure below. The speed of the rock is 13 m/s. (c) What is the total force on the rock directed toward the center of its circular path? Express your answer in terms of the (unknown) tension T in the string. (Use the following as necessary: ?.) F = (d) Apply Newton's second law along both the vertical and the horizontal...
A ball of mass m is resting on top of a vertical spring, with spring constant...
A ball of mass m is resting on top of a vertical spring, with spring constant k and equilibrium length L. The spring is secured to the ground. a) Draw a free-body diagram for the ball. b) The ball rests at a height that is not equal to L. Find the equilibrium height of the ball. c) Find an expression for the compression required to launch the ball to a height h from the ground. Write this compression in terms...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT