need some homework help

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A 25 gram arrow fired from a bow has a speed of 80m.s.  The energy in the arrow came from work done by the bow that acted over a 1m “draw” distance.  What average force acted on the arrow over this distance?

Apr 26th, 2015

Unit of v is incorrect, solved taking v=80m/s instead 80m.s

KE of arrow=0.5mv2

  =0.5*0.025*802

  =80 J

Now KE=Work done

80=Force*distance

80=Force*1

Force=80N


Apr 26th, 2015

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Apr 26th, 2015
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Apr 26th, 2015
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