19. Two rocks are on the ends of a beam, which is balanced on a fulcrum beneath it. The rocks have masses of 15 kg and 25 kg and are 4 m and 2 m away from the fulcrum, respectively. What is the force the fulcrum is placing upward on the beam?
Added by Stephen F.
Close
Step 1
Mass of the first rock ($$m_1$$) = 15 kg Distance of the first rock from the fulcrum ($$d_1$$) = 4 m Mass of the second rock ($$m_2$$) = 25 kg Distance of the second rock from the fulcrum ($$d_2$$) = 2 m The beam is balanced, which means it is in equilibrium. We Show more…
Show all steps
Your feedback will help us improve your experience
Tarandeep Singh and 65 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
A 128-kg, 13.1-m long uniform beam is supported in equilibrium by two fulcrums as shown in the figure. The left fulcrum is 1.83 m from the left end of the beam, and the right fulcrum is 5.1 m from the left end of the beam. What is the magnitude of the force of the left fulcrum on the beam? Left Fulcrum Force: Do not include units in the box below -- the units are already included in the statement above. ONLY WRITE the NUMERICAL VALUE. Include a negative sign if needed. Express your answer to three significant figures.
Tarandeep S.
You are tasked to balanced the two objects that has a mass of 5 kg and 15 kg in a lever machine that has a length of 10 m. At what distance should you place the fulcrum from 5 kg object to balance the lever machine.
Sahil K.
Adi S.
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