Answers

2014-02-28T10:29:39+01:00
Potential Energy=mgh where m=mass of orange, g=acceleration due to gravity=10m/s^2 and h=height of tree Therefore: P.E=50*2.5*10= 1250joules or 1.25kj B. The velocity, here use V^2=u^2+as where v=final velocity, u=initial velocity(we assume 0 because it was not given),a=acceleration=10m/s^2 and s=height V^2=0+10*2.5 V^2=25 V=5m/s
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