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Three charged balls A B C are thrown at the same time from the top of a very high building with velocities mentioned. v A =3j-3i v B =3j v C =6j+2i All the balls are of same mass.Horizontal is X direction and vertically up is Y direction. Find the max height attained by the centr of mass of the balls. ANS:0.8m The min speed of COM will be? ANS:0.33 m/s
If lift is moving with uniform velocity its same as its in restSo, t1 = t2
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