I need someone to do number 16 as soon as possible Please 15. You and your frien

Question

I need someone to do number 16 as soon as possible Please 15. You and your friends are playing hide and seek in the woods but your friends decide it is a good idea to blindfold you, the seeker. Wouldn't you know it you go running after someone and your 56.7kg frame runs right into a tree with a force of 141.8N. What is the acceleration that you are going to tell the ER doctor that resets your broken nose? 16. You and your friends are at it again (I question your friend judgment at this point) and decide to see who is brave enough to get as close as possible to a 78.3m cliff. You and a friend both get to the edge and high five, well this celebration tips your balance enough that you fall off the cliff (worst high five in history). Since you have nothing else to do as you fall, to what is undoubtedly another ER visit, you decide to calculate the force in which your 56.7kg frame will exert on the ground.

Explanation / Answer

Ans: Height of the cliff is H=78.3m

Mass of person M=56.7kg

In the case of free fall a=g=9.8m/s^2 and the velocity of the person when hitting the ground is v=sqrt (2gH)=39.17 m/s

Using Work Energy theorem, F=.5Mv2/H=555.56 N

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