An arrow of mass 20g traveling horizontally strikes a block of wood of mass 1980g resting on a horizontal surface. The impact takes 0.2s before the two move together with an initial velocity of 5m/s. Calculate: a. The velocity of the ...

Explain why a piece of solid steel weighing a few grams sinks in water but a ship weighing thousands of kilograms can float.

Give a reason why mass of a body is constant everywhere.

Describe how the oil patch is formed in an oil drop experiment.