ZuoTi.Pro
Question

A large 64.5 kg board is propped at a 46 ∘ angle against the edge of...

A large 64.5 kg board is propped at a 46 ∘ angle against the edge of a barn door that is 2.7 m wide. How great a horizontal force must a person behind the door exert (at the edge) in order to open it? Assume that the coefficient of friction between the board and the door is 0.41, and that the board is firmly set against the ground.

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A large 64.5 kg board is propped at a 46 ∘ angle against the edge of...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A uniform board is leaning against a smooth vertical wall. The board is at an angle...

    A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.380. Find the smallest value for the angle , such that the lower end of the board does not slide along the ground.

  • You want to nail a 1.3 kg board onto the wall of a barn. To position...

    You want to nail a 1.3 kg board onto the wall of a barn. To position the board before nailing, you push it against the wall with a horizontal force F to keep it from sliding to the ground Figure 6-30 (a) If the coefficient of static friction between the board and the wall is 0.85, what is the least force you can apply and still hold the board in place? N (b) What happens to the force of static...

  • A 48.2 kg, 3.1 m uniform ladder leans against a frictionless wall. A 97.8 kg person...

    A 48.2 kg, 3.1 m uniform ladder leans against a frictionless wall. A 97.8 kg person is standing on the ladder down 0.96 m from the top of the ladder. The ladder makes an angle of 57 degrees with the horizontal. What is the minimum coefficient of static friction between the ladder and the ground so that the ladder does not slip?

  • A person holds a 3.0 kg block against a rough wall by pushing the block diagonally...

    A person holds a 3.0 kg block against a rough wall by pushing the block diagonally at an angle of 32 degrees with the horizontal. If the coefficient of friction between the block and the wall is 0.782, determine the smallest amount of force with which the person must push in order to hold the block stationary.

  • A nasty person puts a man m=60 kg into a cart m=100 kg, and places the...

    A nasty person puts a man m=60 kg into a cart m=100 kg, and places the cart against a large spring with k=9000 N/m, compresses the spring by d=1.75 m, then releases the cart. The man and cart shoot down a horizontal track with coefficient of friction 0.10. The track ends at the edge of an extremely deep abyss which is 4.0 m wide. The other side of the abyss is higher than the side of the track by 5.0...

  •  A block of mass 3.00 kg is pushed against a wall by a force P that makes a 50.0 degree angle with the horizontal....

     A block of mass 3.00 kg is pushed against a wall by a force P that makes a 50.0 degree angle with the horizontal. The coefficient of static friction between the block and the wall is 0.250. (a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (b) Describe what happens if absolute value of P has a larger value and what happens if it is smaller. (c) Repeat parts (a) and (b)...

  • A 7.50 m ladder has mass 10.0 kg and is leaning against a frictionless wall, making...

    A 7.50 m ladder has mass 10.0 kg and is leaning against a frictionless wall, making a 54° angle with the horizontal. The coefficient of friction between the ladder and ground is 0.42 Part A To what vertical height could a 95.0 kg person reach before the ladder starts to slip? Express your answer using two significant figures. O AJ O O ? Submit Previous Answers Request Answer * Incorrect; Try Again; 3 attempts remaining

  • 4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coe...

    #4 and #5!! 4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20. What horizontal force must be applied to the box to cause it to start sliding along the surface? 4 :0 ovit 5. A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 300 above the horizontal. It strikes a target above the ground...

  • Two football linemen face-off against one another at the line of scrimmage. The taller one has...

    Two football linemen face-off against one another at the line of scrimmage. The taller one has a mass of 107.6 kg and the shorter one has a mass of 80.6 kg. The players have the same coefficient of friction between the ground equal to 0.28 as they are both wearing the same size and type of Nike cleats. Because one lineman is taller then the other he pushes downwards while the other linemen pushes upwards at an angle of 5.4...

  • 12. A 3.0 m long and 2.0 m wide carton of mass 100 kg leans against...

    12. A 3.0 m long and 2.0 m wide carton of mass 100 kg leans against a smooth wall as shown in the figure The coefficient of state friction between the floor and the lower end of the carton is 0.80. The normal for the a 240 N h TOON c. 980 N d. 80N e. None of the above A 2.0 m long, 200 N uniformladder, rests with one end against a smooth wall making an angle of 30...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT