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A lamp hangs from the ceiling at a height of 2.9 m. If the lamp breaks and falls to the floor, what is it's impact speed?
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A)61.2m/s B)56.8m/s C) 7.5m/s D)14.2m/s
U know the formula V^2=u^2+2*g*h Given u=0 h=2.9m
Tell me v=?
Its asking for the impact speed. Doesnt give the velocity @shamim
Wt do u mean by impact speed?
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@perl HELP lol
@janello shamim is right
you can use the formula v^2=u^2+2*g*h v = final speed (here speed of impact) u = initial speed (here zero) g = acceleration due to gravity (9.8 m/s^2) h = height (here 2.9 meters)
The answer i get isnt one of the amswer choices.
THANK YOU SO MUCH @perl
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