# PHYSICS

Which machines has more mechanical advantage pulley or incline plane?

I asked this question before but did not quite understand the answers that were given to me. I think that the incline plane has more mechanical advantage in a friction less environment.

1. 👍 0
2. 👎 0
3. 👁 180
1. The MA of a pulley is 2.

The MA of an inclined plane is slope length divided by height, or 1/sinTheta

so at these angles...

angle MA
45 1/.7=1.4
60 1/.866=115
30 1/.5=2
15 1/.259=3.9

So it depends on the angle of the incline plane.

1. 👍 0
2. 👎 0
2. ohh i finally get it!

1. 👍 0
2. 👎 0

## Similar Questions

1. ### science: physics

A 2.0 kg breadbox on a frictionless incline of angle is connected, by a cord that runs over a pulley, to a light spring of spring constant , as shown in Fig. 8-42. The box is released from rest when the spring is unstretched.

asked by gia on February 21, 2008
2. ### SCIENCE

1. Use the image below to answer the following question. At which position does the diver have the most gravitational potential energy? (1 point) 1 2 3 4 2. How does the gravitational potential energy of Coaster A compare with

3. ### physics

Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg, there is a rope connecting that block to a pulley which then connects to another block that is 2.0kg.

asked by mercedes on October 22, 2010
4. ### physics

3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the

asked by Tim on June 8, 2011
1. ### physics

Two blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes: a) What is the acceleration of the blocks? b) What is the tension in the cord? c) Which way will the system move when the blocks

asked by ATT on March 16, 2018
2. ### Science

Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon

asked by Austin on June 6, 2014
3. ### physics urgent

I need help with this problem. I know the answer is (2.1630342940) but I have no idea how to get there. I know i need to sum the forces for each. Block m1( 6 kg ), lies on an incline plane with a coefficient of kinetic friction of

asked by jessica on October 3, 2014

7. During the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. The breaking of the covalent bonds during digestion releases energy. The type of

asked by CCA on February 5, 2014
1. ### Physics check

So I have an experiment and we have to find the mechanical advantage. 1. What is the MA when the load force is 7N and the effort force is 3N? 2. What is the MA when the load force is 7N and the effort force is 6N? My answer for 1.

asked by Tinatike on November 6, 2011
2. ### Physics

A box is sliding up an incline that makes an angle of 15.0 degrees with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box and the

asked by Matoro on December 8, 2012
3. ### Physics

The efficient of a single fixed pulley is 80% find its mechanical advantage

asked by Silas on April 20, 2019
4. ### Physics

A 3.0 kg breadbox on a frictionless incline of angle ¥è = 42 ¢ª is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 110 N/m, as shown in the figure. The box is released from rest when the

asked by Shawna on November 4, 2009