Block A has a mass of 40 kg and block B has a mass of P-kg. The coefficient of kinetic friction between both blocks and the inclined planes is µk = 0.2. If the two blocks are released from rest and block B moves 4 meters up along the incline, determine the acceleration and velocity of block A.

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.