The momentum:
of a 10 kg object is 20 kg*m/s if its velocity is 200 m/s.
of a 10 kg object is 20 kg*m/s if its velocity is 20 m/s.
of a 10 kg object is 20 kg*m/s if its velocity is 2 m/s.
of a 10 kg object is 20 kg*m/s if its velocity is 0.5 m/s.
of a 10 kg object is 20 kg*m/s if its velocity is 0.2 m/s.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.