Question

A 8.0kg block is pulled along a horizontal frictionless floor by a cord that  exerts a force...

  1. A 8.0kg block is pulled along a horizontal frictionless floor by a cord that  exerts a force T​ ​ = 10N at an angle of 30​o above the horizontal as shown  below. Draw a free body diagram for each scenario below.

   

  1. What is the acceleration of the block? Include FBD
  2. The force T​ ​ is slowly increased. What is the value of T​ ​ just before the block is lifted off the floor? Include FBD
  3. What is the acceleration of the block just before it is lifted off the floor? Include FBD

Homework Answers

Answer #1

Free body diagram:

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 4.82 kg block located on a horizontal frictionless floor is pulled by a cord that...
A 4.82 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=12.4N at an angle theta=25.0degrees above the horizontal, as shown. What is the magnitude of the acceleration of the block when the force is applied? What is the horizontal speed of the block 4.30 seconds after it starts moving? What is the magnitude of the normal force acting on the block when the force F is acting on it? If, instead,...
A block with mass 6.00 kg slides on a horizontal floor as it is pulled with...
A block with mass 6.00 kg slides on a horizontal floor as it is pulled with a string by a force of 50.0 N at an angle of 30.0° with the horizontal. The force of friction between the floor and the block is 10 N. A. Draw below a free body diagram for the block. Label all the forces and describe each force: name and source of the force. B. Find the y-component of the net force. Explain your answer....
A mass m = 13 kg is pulled along a horizontal floor, with a coefficient of...
A mass m = 13 kg is pulled along a horizontal floor, with a coefficient of kinetic friction μk = 0.07, for a distance d = 5.1 m. Then the mass is continued to be pulled up a frictionless incline that makes an angle θ = 33° with the horizontal. The entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 33° (thus on the incline it is...
A box of mass 12 kg is placed on the horizontal floor. The floor is not...
A box of mass 12 kg is placed on the horizontal floor. The floor is not frictionless. If someone pushes on to the box with a force F = 40 N which is directed at an angle of 37.0 o below the horizontal and the box slides along the floor. What is the normal force that the floor exerts on the box?
A 7.00 kg block sits on the floor at rest. Block is being pulled across a...
A 7.00 kg block sits on the floor at rest. Block is being pulled across a frictionless floor with a force F=14 N at an angle of 35 degrees. What is the magnitude of block’s acceleration?
A mass m = 12 kg is pulled along a horizontal floor with NO friction for...
A mass m = 12 kg is pulled along a horizontal floor with NO friction for a distance d =7.2 m. Then the mass is pulled up an incline that makes an angle θ = 30° with the horizontal and has a coefficient of kinetic friction μk = 0.49. The entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 30° (thus on the incline it is parallel...
A mass m = 12 kg is pulled along a horizontal floor with NO friction for...
A mass m = 12 kg is pulled along a horizontal floor with NO friction for a distance d =7.2 m. Then the mass is pulled up an incline that makes an angle θ = 30° with the horizontal and has a coefficient of kinetic friction μk = 0.49. The entire time the massless rope used to pull the block is pulled parallel to the incline at an angle of θ = 30° (thus on the incline it is parallel...
A block of mass 1.970  kg is free to slide on a frictionless, horizontal surface. A cord...
A block of mass 1.970  kg is free to slide on a frictionless, horizontal surface. A cord attached to the block passes over a pulley whose diameter is 0.150  m , to a hanging book with mass 3.030  kg . The system is released from rest, and both the book and the block are observed to move a distance 1.19  m over a time interval of 0.780  s ; at the instant at which that distance is measured, the book is still moving downwards and...
A chair of weight 140 N lies atop a horizontal floor; the floor is not frictionless....
A chair of weight 140 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 38.0 N directed at an angle of 38.0 ∘ below the horizontal and the chair slides along the floor. 1.Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair.
A 6.0-kg block initially at rest is pulled to the right along a horizontal surface with...
A 6.0-kg block initially at rest is pulled to the right along a horizontal surface with a force of 12 N. The force of kinetic friction is 3N. a. Draw a free-body diagram of the situation. b. Find the work done by the 12 N force on the block to move the block 3m? c. Find the work done by the force of friction on the block when the block was moved 3m? d. Use the work-energy principle to find...