Q1. The acceleration of a motorcycle is given by ax(t) = At - Bt2, where A = 1.2 m/s3 and B = 0.12 m/s4. The motorcycle is at rest at the origin at time t = 0. Find out its position as a function of time t. Find out its velocity as a function of time t.
Q2. How many drops of water are in all the oceans on earth? Assume that contains 25 drops of water. Remember that this is an order-of-magnitude problem, so you should expect that you will only find rough estimates for the numbers you require.