phy2020_Force and Motion Assignment

Part A. Find the tension in the cord A for system a. Part B. Find the tension in thecord B for system a. Part C. Find the tension in the cord C for system a. Part D. Find the tension in cord A for system b. Part E. Find the tension in the cord B for system b. Part F. Find the tension in the cord C for system b.

Return to page 61 of the Student Module Booklet and begin Lesson questions 11 to 14, read each question carefully. Decide which of the choices completes the statement or answers the question. Place your answer in the I space given. 11. You can reduce the braking force required to stop a car by A. lengthening the braking time B. reducing the braking time C. increasing the friction between the tires and the road D. increasing the friction between the brake pads and drums 12. To decrease the forces experienced in an accident, A. decrease the time over which the change in momentum occurs B. increase the time over which the change in momentum occurs C. increase the change in velocity D. increase the mass of the vehicle

Please write your answer in A PAPER PLEASE.

Return to page 61 of the Student Module Booklet and begin Lesson 3. For questions 11 to 14, read each question carefully. Decide which of the choices BEST completes the statement or answers the question. Place your answer in the blank space given. 11. You can reduce the braking force required to stop a car by A. lengthening the braking time B. reducing the braking time C. increasing the friction between the tires and the road D. increasing the friction between the brake pads and drums 12. To decrease the forces experienced in an accident, A. decrease the time over which the change in momentum occurs B. increase the time over which the change in momentum occurs C. increase the change in velocity D. increase the mass of the vehicle

1. Make a sketch of a friction block sliding down the inclined track. Draw and label vectors to indicate the direction of the velocity and the direction of the acceleration.  Also assign a symbol to the mass of the block and label it on the drawing. 2. Draw a free-body diagram of the forces on the block as it slides down the ramp.  Draw the acceleration vector for the block near the free-body diagram.  Choose a coordinate system, and draw the force vectors on your coordinate system (a force diagram). What angles between your force vectors and your coordinate axes are the same as the angle between the ramp and the table?  Determine all of the angles between the force vectors and the coordinate axes. 3. Write down Newton's 2nd law in both the x and y directions.  For any forces that are at an angle to your coordinate system, be sure to consider the components along the x and y axes. Your answer will depend on how you define your coordinate system.   4. Using the equations in step 3,…

Box-Dog (who has a mass m) is going down a frictionless hill at a constant speed. Select all of the following equations that correctly describe Box-Dog’s motion. More than one answer may be possible; select allthat apply.A. Fdog + mgcos(theta) - Ft cos(phi) = 0B. Fdog + mgsin(theta) - Ft sin(phi) = 0C. Fdog + mgsin(theta) - Ft cos(phi) = 0D. FN + Ft cos(phi) - mgcos(theta)  = 0E. FN + Ft sin(phi) - mgcos(theta)  = 0F. FN + Ft sin(phi) - mgsin(theta)  = 0

35mks

Ignoring friction, explain what would occur in the following situation and how it relates to Newton’s Third law.  a. A cannon shoots out a cannon ball.  Draw and label the action and reaction forces between the cannon and cannonball.    b. How does the cannon's acceleration compare to the cannon ball and why?

Two blocks, A and B, are connected by a rope. A second rope is connected to block B and a steady, horizontal tension force of T=50 Newtons is applied. The system moves at a constant speed across the ground. Block B experiences a friction force of 10 Newtons. A.Draw and label an appropriate force vector diagram for block B.  B.What is the friction force acting on block A?

The diagram shows the forces acting on a lorry as it travels along a flat road. a. Two of the forces have effects that cancel eachother out. Which two? Explain your answer. b. What is the resultant force of the lorry? Give it's magnitude and direction c. What effect will this resultant force have on the speed at which the lorry is travelling?

Stuck need help! Problem is attached. please view attachment before answering.  Really struggling with this concept. Please explain so I can better understand ! Thank you so much

Two identical boxes with mass m are placed on inclined surfaces with coefficient of kinetic friction and connected by a light rope passing through a frictionless pulley as shown in the figure. Which of the following gives the correct expression for the system's accelera- tion? A. a = (sin 3-sina) - B. a (sin 3-sina) - C. a = (sin a-sin 3) - D. a (sin a sin 3) - (cosa = - = (cosa + cos 3) (cosa - cos (3) (cosa + cos 3) cos 3) α |6|× m B

The lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.27. The coefficient of kinetic friction between the lower block and the upper block is also 0.27. What is the acc of the 2.0 kg block? I can't figure out how to set the FBD up correctly. See figure for a picture

A scared elephant has a mass of 7000 kg. The mouse that frightened the elephant is 0.02 kg. The distance between the elephant and the mouse is 1 meter. a. How much gravitational force does the elephant exert on the mouse? b. How much gravitational force does the mouse exert on the elephant? show all work

a frictionless plane is 10.0 m long and inclined at 31.0 degree a sled starts at the bottom with an initial speed of 5.40 m/s up to incline. when the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline with an initial speed v1. both sleds reach the bottom of the cline at the same time. A. determine the distance that the first sled traveled up the incline. ___________ m Determine the initial speed of the second sled _________ m/s

provide the following: 1. given 2. unknown 3. equation 4. solution 5. answer  *add diagram if applicable

Pls. provide a right answer and complete solution.

During a high speed chase, a fast running mouse collided with an elephant . The mouse rolled back after the collision. Using Newton's third law to explain the following. A. Why does the mouse roll back? B. Does the elephant have acceleration after the collision? If there is in what direction?

Open Response 3. This is a multi-part problem. Please answer all parts here. A 0.6 kg block is pulled up a rough 30° incline by a light string The string applies a constant force to the block. The block starts from rest and travels a distance of 2 m up the incline n 10 s. The coefficient of kinetic friction between the block and the incline is 04. a What is the block's acceleration? b. What is the tension in the string? Et L Cn

Problem 2: Assume negligible friction between the crate and the surface. In both situations, a man exerts a 300 N force on a crate that has a mass of 50 kg. The angle in both scenarios is 30 degrees. 15 F A. Draw two free-body diagrams with the crate as the object of interest-one for each scenario. Label the individual forces that act on the crate clearly. B. Separately for each situation, state whether the normal force is equal to, greater than or less that the weight force? Explain your reasoning.

Answer what is asked. Take your time to answer, will give you thumbs up. You may draw to further explain the solution. Thank you

You push a lawnmower (mass=15kg) across the lawn at constant speed. To do so, you must excert 200 N of force. The handle makes a 35° angle with the horizontal.  A. Draw the force diagram B. What is the x-component of the force you apply? C. How does it compare to the frictional force which opposes your effort? Explain. D. If the frictional force is reduced to 100 N, determine the acceleration of the lawnmower.

1) A toy mobile is built like the one shown below. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. B Mathematical procedure is fully consistent with the design. All quantities are calculated correctly with proper units. Final answer is meaningful. 2 Adequate Explanation is clear, detailed, and shows physical and conceptual understanding. Explains both what was done and why. 3 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords. Ability A5: Is able to construct a force diagram Needs Work Inadequate FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or components are drawn instead of forces. 2 1 FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of…

Look at picture. I am having trouble with 2 questions.

Remaining Time: 26 minutes, 51 seconds. v Question Completion Status: A Moving to another question will save this response. Question 6 An 18.0-kg box is released on a 34.22 degree incline and accelerates down the incline at 0.27 m/s. Find the friction force impeding it motion. (Write the value and SI unit.) A Moving to another question will save this response.