27). You have a hybrid (m = 1600 kg) car charging its batteries while it is going downhill. It decends over a
height of 1500 m. If all this energy (€ = 1.0) could be stored in the battery, how much would there be? If you
used this energy to get the car going again, how fast would it go?
28). A hydraulic jack has a car (m = 12,000 kg) on one pad of it (A = 2.7 $m^2$). If the other pad has an area of 40
$cm^2$, how much force on that pad is required to lift the car? If you want to lift the car 2m, how far must the
other pad be pushed in?
29). You have a constant acceleration drive on your spaceship (m = $10^8$ kg) so that a = 0.5 $m/s^2$ while at an
angle of 15°. The Sun has a constant force on you (called the Solar Wind) that hits you with a force of $10^8$ N.
What is the final acceleration on your ship (including direction)? If you start from rest, how fast are you going
after 1 year?
