A10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through the air at 34 m/s when a 60 kg skydiver drops out by releasing his grip on the glider. what is the gliders speed just after the skydiver lets go? express your answer to two significant figures and include the appropriate units.

34 m/s

Explanation:

m = Mass of glider with person = 680 kg

v = Velocity of glider with person = 34 m/s

= Mass of glider without person = 680-60 kg

= Gliders speed just after the skydiver lets go

= Mass of person = 60 kg

= Velcotiy of person = 34 m/s

As the linear momentum of the system is conserved

The gliders speed just after the skydiver lets go is 34 m/s

the force required to move the cart is divided by three or 33.33 n.

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.