5 (a) What is the mechanical advantage of the pulley system below? Assume that the block has a mass m. Ignore friction as well as the mass of the pulleys. (b) If the mass of the block is 30kg how much power is require to lift the box 2 meters in 60 second using the above pulley system?
Added by Latasha C.
Close
Step 1
In this case, the output force is the weight of the block (m * g) and the input force is the force applied to lift the block. Therefore, MA = m * g / F, where m is the mass of the block and g is the acceleration due to gravity. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 80 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Sri K.
Mechanical Advantage The pulley system shown in FIGURE $6-41$ is used to lift a $m=67-$ kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assuming the masses of the chains, pulleys, and ropes are negligible, determine (a) the force $F$ required to lift the crate with constant speed, (b) the tension in the upper chain, and (c) the tension in the lower chain.
Linda W.
Find the mechanical advantage of each pulley system.
Simple Machines
The Pulley
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD