Consider the system of weights P_(1)=1 kg,P_(2) = 2 kg,P_(3) = 5kg and P_(4) = 0.5 kg as shown in Figure 7.14. alpha = 30^(@), g = 9.8 ms^(-2) and the coefficient of friction between the weights and the planes is 0.2 Find (a) the acceleration of the system (b) tensions in the strings between P_(1) and P_(2) and that between P_(2) and P_(2) respectively and (c) the force with which P_(4) presses down on P_(3) [Hint : Make free-body diagrams and apply Newton's law of motion after resolving the forces acting on a body along and perpendicular to the plane on which it lies]

Consider the system of weights P_(1)=1 kg,P_(2) = 2 kg,P_(3) = 5kg and

1.	Consider the system of weights P_(1)=1 kg,P_(2) = 2 kg,P_(3) = 5kg and P_(4) = 0.5 kg as shown in Figure 7.14. alpha = 30^(@), g = 9.8 ms^(-2) and the coefficient of friction between the weights and the planes is 0.2 Find (a) the acceleration of the system (b) tensions in the strings between P_(1) and P_(2) and that between P_(2) and P_(2) respectively and (c) the force with which P_(4) presses down on P_(3) [Hint : Make free-body diagrams and apply Newton's law of motion after resolving the forces acting on a body along and perpendicular to the plane on which it lies]
Answer» ANSWER :`6.87 MS^(-2)` (B) `8.83 N,16.12 N` (C) 1.465 N