Draw FBD for Inuit Hunter in Blanket Toss of 700N

  • Thread starter Thread starter temaire
  • Start date Start date
  • Tags Tags
    Dynamics
AI Thread Summary
The discussion focuses on drawing a free-body diagram (FBD) for an Inuit hunter weighing 700 N at the peak of a blanket toss jump. The blanket toss is described as a traditional method for spotting caribou, involving a taut hide and a jumping hunter. Participants confirm that an equation is not necessary for this problem. A visual representation of the FBD is provided, and the correctness of the diagram is affirmed. The conversation emphasizes understanding the forces acting on the hunter during the jump.
temaire
Messages
275
Reaction score
0

Homework Statement


The blanket toss is a centuries-old hunting technique that the Inuit used to find herds of caribou. During the toss, several people would hold a hide taut while the hunter would jump up and down, much like on a trampoline. At the top of the jump, the hunter would rotate 360 degrees looking for the herd. Draw a free-body diagram for a hunter of weight 700 N [down] while at the maximum jump height.


Homework Equations


I don't think an equation is necessary for this question.

The Attempt at a Solution


This is what I think is the answer.

http://img216.imageshack.us/img216/9743/dynamicsey3.jpg​

Is this correct?
 
Last edited by a moderator:
Physics news on Phys.org
You are correct.
 
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
Back
Top