Solutions

IB Physics: Solutions

1. A ball of mass 0.16kg is thrown upwards with an initial velocity of 25ms-1 and reaches a maximum height of 20m. Calculate the percentage loss of energy due to air resistance. Hint: Solution: 2. A body of mass 5kg is projected up a board inclined at an angle of 30°to the horizontal with an initial velocity of 6ms-1. Assuming that the frictional force is a constant 4.5N calculate


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