- Differentiate between thrust and pressure.
- How does 1 Pascal differ from 1 Newton?

- Difference between thrust and pressure are

Thrust | Pressure |
---|---|

The force acting on a body when it is partially or fully immersed in a fluid. | The force per unit area, acting perpendicular to the surface. |

Its SI unit is Newton. | Its SI unit is N/m^{2} or Pa (Pascal). |

- The pressure exerted by 1 N of force which is acting perpendicular to the surface, if area 1 m
^{2}is called Pascal.

∴ 1Pa = 1N/m^{2}

Force required to accelerate 1 kg mass at the rate of 1 m/s^{2}is called Newton.

1N = 1 kg-m/s^{2}

Since, we know that

Pressure, p = F/A

∴

If area is doubled, then pressure will reduce to half of its initial value.