A simple pendulum of mass m = 10 kg and length r= 1 m is mounted on the flatcar, which has a constant horizontal acceleration a = 1 m/s as shown. If the pendulum is released from rest relative to the flatcar at the position 0 = 0 deg, determine the expression for the tension Tin the supporting light rod for 0 = 45 deg and A = 90 deg.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.