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din get u??????
sorry to change ques.
how to use constraint method in hcverma newton's laws ex-9.
the prob there is to decide the direction of displacement of big block.
using energy we get constraint
as 2a1+a2+a3=0
but i know correct eq. is 2a1=a2+a3
nishant sir help.
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6 Answers
1mass of B ?
let it be M.
then acc of com = 10/(5+M)
both of tehm will have same acc as the surface in between is frictionaless..
62then thi si scorrect only
A will have acceleration of 2 m/s2
B will have zero acceleration
62john
remember that the sum wala is correct because in that case your +ve x axis is in the same direction
while in the other case that you have the direction is dependent on the convention that you are chosing
both are correct for different +ve sign conventions