plz help me on this question fast
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a)mgh1-mgh2= 1.1*9.8*0.5 = 5.39 J........... as h2=0
KE of ball after striking ground = PE of ball at the highest point after rebound
b)energy lost= initial potential energy- final kinetic energy
= 5.39- mgh3
= 5.39-( 0.5*9.8*0.8)
= 5.39- 3.92
=1.47 J
c) this lost energy appears in the form of heat energy aand sound energy when the ball strikes the ground
hope it helps
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momenmamdouh3374:
of some question at past paper
ill see tomorrow what i can do
its 2:30 now
why u answer tomorrow morning
ok
where r u form
give me whatsapp number to send past paper form IGCSE PLZ
this was just one question which i could solve by chance
igcse is not my terms
still ill think about it tmorrow
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