Grade 12Mechanics
PL answer the attach question. The chapter is from mechanics.
1 Answer
Khimraj
let acceleration of lift is a,then relative acceleration will be g+a.
then
0 = ut - (½)(g+a)t2
2u = gt +at
So,
a = (2u – gt)/t.
Hence option (3) is correct.
Hope it clears.If you like answer then please approve it.
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