Question

Derive the SI units of i) Density ii)Acceleration iii) Force iv) Pressure

Answer 1

Explanation:

1. density=mass/volume

= kg/m³

unit of mass is kg and unit of volume is m³.

2. acceleration =change in velocity per unit time

= v/t where v=change in velocity

t= time

unit of velocity is m/s and unit of time is second

acceleration =m/s²

3. force=Newton

4.pressure= force/area

= N/m²

Answer 2

Explanation:

1. density _kg/m^3

2. acceleration_m/s^2

3. force_N

4. pressure_N/m^2