A flea stands 2 meters away from a dog. Launches 55cm in height. Jumping at an angle of 32degrees. what is its initial speed to reach it new home. (projectile Motion)

Question

anonymous · Answer

Help please!

souvik · Answer

HINT:
first draw a simple picture...then divide the velocity into two components..X and Y
when you deals with X direction you can forget what happens in Y direction..
there is no acceleration in the X direction and gravitational acceleration in negative direction..
suppose after time t flea would land its new house...
in X direction..you can use $$s =v _{x}t$$ 
and in Y direction use this equation...$$h =u _{y}t-g t ^{2}$$
then eliminate t from this two equation...