Answered

Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

3. A 16 kg barrel is lifted up by a rope. The barrel accelerates at 1.4 m/s2. Find the force exerted by the rope. Show all your work.
Answer:

Sagot :

AL2006

Net force = (mass) x (acceleration)

There are two forces acting on the barrel:

-- the force of gravity, downward;
-- the force of the rope, upward.

When these two forces are added together, their sum (the net force
on the barrel) causes the barrel to accelerate upward at 1.4 m/s² .
 
  Net force = (Rope force) - (Grav force) = (mass) x (acceleration)

Grav force = 'weight' = (mass) x (grav) = (16 x 9.8) =  156.8 newtons

Net force = (mass x acceleration) = (16 x 1.4) = 22.4 newtons

Net force =

                         22.4 newtons = (Rope force) - (156.8 newtons)

Add 156.8 newtons to each side:  Rope force = 22.4 + 156.8 = 179.2 newtons
Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Your questions are important to us at Westonci.ca. Visit again for expert answers and reliable information.