This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
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You're on a roll — (ii) This question refers to a previous context (an impact) which is not provided in the image. Therefore, it cannot be answered. (iii) • In an elastic collision, both momentum and kinetic energy are conserved. Objects bounce off each other without any loss of kinetic energy. • In an inelastic collision, momentum is conserved, but kinetic energy is not conserved. Some kinetic energy is converted into other forms of energy, such as heat or sound, and the objects may stick together. (iv) Newton's 2nd law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It is expressed as F = ma, where F is the net force, m is the mass, and a is the acceleration. 21. (a) (i) Step 1: Identify the given values. Force applied to the smaller piston, F = 50 \, N. Area of the smaller piston, A = 2 \, cm^2. Step 2: Convert the area to square meters. A = 2 \, cm^2 × (1 \, m100 \, cm)^2 A = 2 \, cm^2 × 1 \, m^210000 \, cm^2 A = 0.0002 \, m^2 A = 2 × 10^-4 \, m^2 Step 3: Calculate the pressure produced in the oil at X using the formula P = (F)/(A). P = 50 \, N2 × 10^-4 \, m^2 P = (50)/(0.0002) \, Pa P = 250000 \, Pa P = 2.5 × 10^5 \, Pa The pressure produced in the oil at X is 2.5 × 10^5 \, Pa. Got more? Send 'em!