Ask a Teacher

An earth satellite makes a complete circuit around the earth in 90 minutes.If the orbit is circular estimate the height of the satellite above the earth.Take the radius of the earth is 6370km and g=9.8m/s2.

Here T = 90 minutes
             = 5400 s
          R = 6370
              = 6.3 × 10⁶m
           g = 9.8 m|s²

                  = 6.598 × 10⁶m
                  = 6598 km
               h = 6598 - 6370
                   = 228 km