Two bodies of masses 5 kg and 4 kg are arranged in two possition as shown in fig. (A) and (B), if the pulleys and the table are perfectly smooth, the accelration of the 5 kg. body in case (A) and (B) are:-

Options

A. g and (5/9)g
B. (4/9)g and (1/9)g
C. g/5 and g/5
D. (5/9)g and (1/9)g

Answer

B

Explanation

For case A
`4g-T=4a`
T=5a
`therefore a=(4g)/(9)`
For case B
5g-T=5a
T-4g=4a
`a=(g)/(9)`