c. Suppose the incline in part b is nowplaced on a frictionless table.Frictionlessi. Is the net force on the blockalways zero? Explain.ii. Is the net force on the incline always zero? Explain.iii. Is the net force on the block-incline system always zero? Explain.iv. Is the momentum of the block conserved? Explain.v. Is the momentum of the incline conserved? Explain.vi. Is the momentum of the block-incline system conserved? Explain. d. Two blocks, A and B, are connected by a massless and inextensiblestring. Their masses are m, = 200 g and m, = 400 g. The blocks arereleased from rest. The pulley has negligible mass. Let S representthe system of blocks A, B, the string, and the pulley.i. Is the net force on block A always zero? Explain.ii. Is the net force on system S always zero? Explain.400 giii. Is the momentum of block A conserved? Explain.A200 giv. Is the momentum of system S conserved? Explain.

(c) (i) Given: The diagram is as follows: Introduction: Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables, the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.Explanation: The net force on the block is not always zero because the block slides down the incline and will possess a net acceleration. (ii) Explanation: Yes, the net force on the incline is always zero because the incline is at rest and there is no external force being applied to bring the incline into motion. Thus, from the law of inertia, a body at rest tends to remain at rest until an external force is applied on the body. (iii) Explanation: Yes, the net force on the block incline system is always zero. Thus, is because there is no external force acting on the system providing acceleration to the block. (iv) Explanation: No, the block is moving on the incline, so the kinetic friction is acting on the block causing a change in its velocity. Thus, its momentum changes. (v) Explanation: Yes, the momentum of the incline is conserved because there is no net force acting on the incline. Thus, from newton's second law the rate of change of momentum is also zero conserving the momentum. (vi) Explanation: Yes, the momentum of the block incline system is conserved because there is no net force acting on the system. (d) (i) Explanation: No, the net force on block A is not zero. Write the expression of the net force acting on the block A. FA=Mag-T Here, Ma is the mass of block A, g is the acceleration due to gravity and T is the tension. (ii) Explanation: No, the net force on the system is not zero. There is a force of gravity acting on the system. (iii) Explanation: No, the momentum of block A is not conserved. This is because there is a net force acting on block A. (iv) Explanation: No, the momentum of system S is not conserved. This is because there is a net force of gravity acting on the system causing a change in its momentum.

Answered: blocks, A and B, are connected by a…