units for equations

• distance, height, displacement, extension = metres (m)
• time = seconds (s)
• speed of velocity = metres per second (m/s)
• acceleration or deceleration = metres per second squared (m/s$^2$)
• mass = kilograms (kg)
• force, weight, air resistance, drag = newtons (n)
• gravitational field strenght = newtons per kilogram (n/kg)
• acceleration due to gravity = metres per seconds squared (m/s$^2$)
• spring constant = newtons per metre (n/m)
• bequerels:

  unit of radioactivity