When jumping, a flea accelerates at an astounding 1000 m/s2, but over only the very short distance of 0.50 mm. if a flea jumps straight up, and if air resistance is neglected (a rather poor approximation in this situation), how high does the flea go?

The flea will move high to a height of 0.05 meters.

Explanation:

Given that,

Acceleration of the flea,

Distance, d = 0.5 mm = 0.0005 m

Let u and v are the initial and final velocity of the flea. Using equation of motion as :

..........(1)

Using conservation of energy, we get :

h = 0.05 meters

So, the flea will move high to a height of 0.05 meters. Hence, this is the required solution.

i'm thinking more like energy

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !