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Grade: 12
        

Three charged balls A B C are thrown at the same time from the top of a very high building with velocities mentioned.
vA=3j-3i
vB=3j
vC=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

7 years ago

Answers : (1)

Anirban Mukherjee
47 Points
							

If lift is moving with uniform velocity its same as its in restSo, t1 = t2

7 years ago
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