Question

two blocks of masses 10kg and 50 kg are connected to a ideal string passing over a pulley. the block of mass 10kg is sliding on a surface inclined at an angle of 30degree with tge horizontal whereas 50kg block hangs freely. find the acceleration of the system and tension in the string,, given coefficient of friction 0.1 and g = 10metre per second sqaure,, plz answer...​

Answer 1

Correct option is

C

5m/s2

By balancing forces on block B

Tension in the string (T)=mg=10x10=100N

Friction force on block A = μmg=0.5x10x10=50N

Net force on block A = T - friction force on block A

                                          =100−50=50N

Acceleration of A = mNet force on blockA

                             = 1050 = 5 m/s2

The system will move with 5 m/s2 of acceleration.