Work Energy Power Solutions(q6 Updated)

→ t= 6s In reality, maximum power cannot be applied instantaneously at t = 0s. Power can only be increased to its maximum value over a period of time. Hence, the minimum time taken should be longer than the value calculated here. (Air resistance is not a good reason to be used here because the question does not assume that air resistance is negligible. Note that by using work done = change in energy method to solve this question, we are not neglecting friction because we only consider the initial and final states. The process on how we arrive at the final state is not important, so involvement of friction does not interfere in our calculation)