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Question: Assuming all the surfaces to be frictionless, acceleration of the block C shown in the figure is – ...

Assuming all the surfaces to be frictionless, acceleration of the block C shown in the figure is –

A

5 m/s2

B

7 m/s2

C

3.5 m/s2

D

4 m/s2

Answer

3.5 m/s2

Explanation

Solution

a = aA+aB2\frac { \mathrm { a } _ { \mathrm { A } } + \mathrm { a } _ { \mathrm { B } } } { 2 } = 3+42\frac { 3 + 4 } { 2 } = 72\frac { 7 } { 2 } = 3.5 m/s2