please solve the question with explination.
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please solve the question with explination.
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Answer:
1. a=v-u/t
at=v-u
u+at=v
hence, proved that u+at=v and not v=u+at^2
2. P.E.= mgh
g is acceleration due to gravity
acc=v/t
acc=s/t^2
h= distance
hence, m×d×d/t^2
hence, it's answer is m^1L^2t^-2
mass=1
length=2
time=-2