If michael jordan has a vertical leap of
1.5 m, then what is his takeoff speed?
(g = 10m/s)

Velocity = 5.47[m/s]

Explanation:

Using one of the equations given (kinematic equation), we can find the initial velocity or the takeoff speed at which Michael Jordan can jump.

In this particular case we need to stablish the conditions:

1) Vx = 0 (because when Michael Jordan reach  the highest elevation his velocity will be zero

2) x = 1.5 [m] (maximum elevation reached by Michael Jordan)

3) X0= 0[m] (When Jordan has his feet on the ground]

Now replacing the values:

Note: we take acceleration with minus sign because acceleration is action down

increase masses, decrease separation