Mass of glass is more than the mass of wood. If volume of glass and wood is same then, a. Glass is denser than wood b. Wood is denser than glass c. Glass and wood are equally dense d. Density of glass cannot be calculated

a. Glass is denser than wood.

Explanation:

Density=Mass/volume

In this case we know that mass of glass is greater than wood. And the volume of both glass and wood are the same, so we will ignore that factor. Since mass is directly proportional to density, if your mass increase, your density increases as well, in this case.

0.11 m/s and 0.28 m/s should be correct