No they don't. A single rope and a single pulley changes the direction but not the force. Several pulleys with a several pulleys, known as a block and tackle, will change the force required.
http://www.explainthatstuff.com/pulleys.html.
Do all pulleys change the amount of force needed to move an object? Justify your answer
Explain how a pulley changes the amount of force needed to lift an object.
6 answers
Thank you!
i dont get it
Thankyou
anyone figured this out yet?
Hey guys these are my answers!
1.false
2. C
3. D
4. B
5. D
6. A
7. B
8. A
9. The value of using international system of units when describing motion scientists use meters and seconds.
10.A: The pulley doesn’t change the amount of force it stays the same.
B: Nope the pulley only changes directions without adding or taking away any force.
1.false
2. C
3. D
4. B
5. D
6. A
7. B
8. A
9. The value of using international system of units when describing motion scientists use meters and seconds.
10.A: The pulley doesn’t change the amount of force it stays the same.
B: Nope the pulley only changes directions without adding or taking away any force.
1 answer