Two cars accelerate uniformly at the same rate. The second travels for twice the time of the first. The distance covered by the second car is …………times that of the
distance covered by the first car. Justify your answer?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)