A motorcycle has an initial speed of u m/s.
it accelerates to a speed of 1.2u in 10 seconds.
The motorcycle then travels at a constant speed of 1.2u m/s
for 15 seconds.
Assuming that the acceleration is constant, express the total distance,
D in metres, travelled by the motorcycle.

An observer(o) spots a plane(p) taking off from a local airport and flying at a 29 degree angle horizontal to her line of sight and located directly above a tower(t). the observer also notices a bird circling directly above her. if the distance from the plane(p) to the tower(t) is 6,000ft., how far is the bird(b) from the plane(p).