The Physics
Hypertextbook
Opus in profectus

Unit Conversion

search icon

Practice

practice problem 1

A 20 km long, 8 m wide, two-lane highway is to be paved with a 4 cm thick layer of asphalt. A fleet of three dumptrucks is to be employed, each with an empty mass of 20 metric tons and a carrying capacity of 20 m3. Asphalt with a density of 0.72 g/cm3 will be used. Determine…
  1. the total volume of asphalt needed
  2. the number of dumptruck loads required
  3. the gross mass of each truck

solution

Answer it.

practice problem 2

Determine which of the following expressions are dimensionally consistent.
  1. v2 = 2ax
  2. x = vt + ½at3
  3. tan θ = v
    x

solution

Answer it.

practice problem 3

Write something else.

solution

Answer it.

practice problem 4

Write something completely different.

solution

Answer it.