Question

Question #8c8b6

Answer 1

Let acceleration of the system be `ams^-2` and Tension be T N

also let `g->"acceleration due to gravity"=9.8ms^-2`

Considering the net force acting upward on the combination of 6kg and 4kg combined block system we can write

`T-10gsin30^@=10a.......(1)`

Again considering the net force acting downward on the 9kg block we can write

`9g-T=10a.......................(2)`

Adding (1) and (2) we get

`9g-10gsin30^@=20a`

So `a=(9g-10gsin30^@)/20=(9g-10gxx1/2)/20`

`=>a=g/5=9.8/5ms^-2=1.96ms^-2`