9 Airplane Takeoff
When an airplane takes off, its speed increases from 300 km/h to 600 km/h, and its
altitude with respect to the ground becomes 600 m.
9.1. What is the nature of the motion of the airplane? Justily.
9.2. Does the kinetic energy of the airplane increase or decrease?
9.3. How do its gravitational potential energy and
mechanical energy vary?
9.4. Where does the mechanical energy gained by
the airplane come from?
Plz help

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?