9. Kinematics, Forces, and Energy Two blocks of mass ma and mg are connected through a pulley tension system as seen in the figure on the right. The string is massless and the pulley is massless and frictionless. There is no friction between block A and the ground. Block B starts at a height h above the ground. Both blocks are released from rest. h (a) Use energy to find an expression for the speed of the block just before it hits the floor. (b) Use forces and kinematics to find an expression for the speed of the block just before it hits the floor. (c) Sensemaking: Compare your two answers. How do you know they are right or wrong?

9. Kinematics, Forces, and Energy Two blocks of mass ma and mg are connected through a pulley tension system as seen in the figure on the right. The string is massless and the pulley is massless and frictionless. There is no friction between block A and the ground. Block B starts at a height h above the ground. Both blocks are released from rest. h (a) Use energy to find an expression for the speed of the block just before it hits the floor. (b) Use forces and kinematics to find an expression for the speed of the block just before it hits the floor. (c) Sensemaking: Compare your two answers. How do you know they are right or wrong?

Name: 9.Kinematics, Forces, and EnergyTwo blocks of mass ma and mg are conn
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: 9.Kinematics, Forces, and EnergyTwo blocks of mass ma and mg are connectedthrough a pulley tension system as seen in thefigure on the right. The string is massless andthe pulley is massless and frictionless. Thereis no friction between block A and t

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Please use conservation of energy A 2.0 kg mass shown is placed against a spring compressed by…

A: Apply the energy conservation equation between the spring and block to calculate the velocity of the…

Q: Conservation of Energy Whiteboard Problems 1. A 40.0 kg test rocket is fired vertically on a level…

A: Note: “Since you have posted multiple questions, we will provide the solution only to the first…

Q: A diver with a mass of 65 kg dives off of a 27 m platform. His velocity just before striking the…

A: We know that the formula of the kinetic energy is given as K.E = 12mv2 -------- eq 1 where m is…

Q: 1. A cart of mass 2.4 kg rolls without friction on the track shown. At point A the cart is moving at…

Q: You accelerate from 0-28 m/s in 6.0 seconds (about 0-60 mi/hr) in your 1300 kg car. a. Create a…

A: Given data: The initial speed is, u =0 m/s The final speed is, v =28 m/s The time required to…

Q: kinetic energy of the ball

Q: (d) particle. What is the maximum possible magnitude of the energy transferred? Starting from t = 10…

Q: Joey Jo-Jo is standing on the top of a hill. His potential energy is 1000 J and he has a mass of 65…

A: Expression for potential energy - PE=mgh .....(1) Where, m = Mass g = Acceleration due to gravity…

Q: A 24.0 kg child plays on a swing having support ropes that are 2.30 m long. Atriend puls her back…

Q: Grogu is using the "force" to lift the Mandalorian who mass is 88 kg for 2.1 meters in 7 seconds. a.…

A: Given Mass =88 kg Height=2.1 m Time=7 sec

Q: 1. Why does defining kinetic energy make calculations easier? 2. You drop a ball from the top of…

A: If an object has mass 'm' and velocity 'v' then the kinetic energy of the object can be found using…

Q: 30 m B What is the gravit 15 m A 500 kg roller coaster is at rest on a frictionless track 30 m above…

A: Mass = m = 500 kg Height = h = 30 m

Q: Josh pushes a 48.0-kg shopping cart with a force of 85.0 N in a direction 35.0° below the horizontal…

A: weight of cart w = 48kg applied force on cart F = 85N the applied direction θ = 35° distance moved…

Q: A 1000 kg car traveling at 40 m/s slows to 15 m/s. What is the initial kinetic energy of the car?…

Q: A 0.60 kg object travels from point A to point B. If the speed of the object at point A is 4.0 m/s…

A: The formula for kinetic energy is: K=12mv2

Q: worker is pushing a heavy box along a surface. The box has 839 J of kinetic energy and a constant…

Q: A child sets a 2.5 kg block in motion by giving it a push along a floor. This gives the block a…

A: Given: The mass of the block is m=2.5 kg The initial velocity of the block is u=0 m/s The final…

Q: An athlete with a mass of 57.0 kg is in a cross country race, and at one instant he has a speed of…

A: mass of athelete (m) = 57 kg speed (v) = 5.20 ms

Q: An 8.0-g bullet has a speed of 730 m/s. a. What is its kinetic energy? KE = J b. What is its kinetic…

A: Given data: Mass (m) = 8.0 g = 8.0×10-3 kg Speed (v) = 730 m/s Required: The kinetic energy (KE)

Q: 13. Micah swings on a 45 m long vine initially inclined at an angle of 57.0° with the vertical.What…

A: Given data: The length of vine is l=45 m. The angle of inclination of vine with vertical is…

Q: The total energy of an object at rest 10 m above the ground on a building is 200 J. The object is…

A: Given , Total energy at 10m above the ground = 200 J Height ,h = 10m acceleration due to gravity, g…

Q: A woman is rollerblading through a park. If she starts from rest, and then reaches a kinetic energy…

A: Since the woman is starting from rest, her initial kinetic energy will be zero. Final kinetic energy…

Q: example of a system having both kinetic and potential energy would be: a. a book resting on a table…

A: A body in motion possess kinetic energy. When a body is at a particular height from ground than the…

Q: What is the kinetic energy of a 6 kg bird moving at a speed of 15 m/s?

A: Here, Mass(m) =6 kg Speed(v) = 15 m/s Kinetic energy (T)=_________

Q: A Red Rider bb gun uses the energy in a compressed spring to provide the kinetic energy for…

Q: A 5.00 gram bullet moving horizontally with a speed of 400 m/s collides with a wooden block. After…

Q: A student builds a roller coaster as shown. The heights of the points are A= 3.3 m B= 1.4 m C= 0 m.…

Q: ball is released from a height of 12 m and weighs 35 N. What is the magnitude |AU| of the total…

Q: 3. What is the potential energy formula? a. What is the unit of measurements that each has…

A: potential energy [P.E or U] PE = mgh where, a. PE is the potential energy of the object in…

Q: A 130 g hot wheels car is put on a launcher that is powered by a spring with a constant of 150 N/m.…

A: Given data: Mass (m) = 130 g = 0.130 kg Spring constant (k) = 130 N/m Compressed by distance (x) =…

Q: a = 1.2 ms2 A Smart Car accelerates from rest as shown. 12. If the constant acceleration occurs over…

A: We know that W = F.d =(ma).d =(860x1.2)x30 =30960 J

Topic Video

Question

9.
Kinematics, Forces, and Energy
Two blocks of mass ma and mg are connected
through a pulley tension system as seen in the
figure on the right. The string is massless and
the pulley is massless and frictionless. There
is no friction between block A and the ground.
Block B starts at a height h above the ground.
Both blocks are released from rest.
h
(a) Use energy to find an expression for the speed of the block just before it hits the floor.
(b) Use forces and kinematics to find an expression for the speed of the block just
before it hits the floor.
(c) Sensemaking: Compare your two answers. How do you know they are right or wrong?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Trending now

This is a popular solution!

Step by step

Solved in 7 steps with 7 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

4. Shawn was driving his car too fast. He was moving with a kinetic energy of 677,000 J. The mass of his car was 2100 kg. Answer Show your work A. Calculate the speed of the car.
...chdhdd
The block moves from point B at a velocity of 4,95 m:s1 up a rough inclined plane to point C. The speed of the block at point C is 2 m:s1. Point C is 0,5 m above the horizontal, as shown in the diagram below. During its motion from B to C a uniform frictional force acts on the block. 1.Use energy principles to calculate the work done by the frictional force when the 2 kg block moves from point B to point C
Work, Power, and Energy 1. A student lifts a box of books that weighs 185 N. The box is lifted 0.800 m. How much work does the student do on the box?
A toy car rolls along a track as shown below. From greatest to smallest, rank the potential energy of the toy car for the three marked locations. Provide an explanation for your ranking. A B C
An object that measured a mass of 0.89 kg started moving at a speed of 3.89 m/s. After some time, the speed increased to 6.25 m/s. What was the kinetic energy when the object reached the higher speed? b. What was the net work done by the object?
A 0.3-kg ball has a velocity of 20 m/s. What is the kinetic energy of the ball? (You must provide an answer before moving to the next part.) The kinetic energy of the ball i J.
A 1.85 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.50 m/s, and at point B it has slowed to 1.45 m/s. 1. If -0.700 J of work is done on the book from B to C, how fast is it moving at point C? 2. How fast would it be moving at C if 0.700 J of work were done on it from B to C?
001 to il ow m, = 500 g me. m, = 200 g hg ho = 3.00 m Diagram for problem 52. Diagram for problem 53. *53. What is the total energy of the Atwood's machine in the position shown in the diagram? If the blocks are released and m falls through a distance of 1.00 m, what is the kinetic and potential energy of each block, and what are their velocities?
Solve the following show the full solution. 1. A 7,000-N piano is raised 7 meters up to the second floor of a building using a pulley. How much is the change in energy in this scenario? 2. A 5-kg toy fire truck moves at 5 m/s onward. What is its kinetic energy?
A model train powered by an electric motor accelerates from rest to 0.520 m/s in 23.0 ms. The total mass of the train is 660 g. What is the average power (in W) delivered to the train by the motor during its acceleration? 3.056 How is the work done related to the change in kinetic energy? What is the initial kinetic energy? How is kinetic energy related to speed? How is power related to work and time? Be careful of units. W Need Help? Read It
Please help.