Answer:
a.
b. ,
Explanation:
Let the velocity of the ball after collision is v m/s, By the law of momentum conservation:
Solve to vf1
(b)
Answer:
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
It's gotta be purple!!!!!!!!!!!!!!!
Different speeds of light through two separate media ... and the difference in wavelength caused by the difference ... causes the bending of waves fronts associated with light rays.
AFTER the bend, since the light rays then travel in a different direction, we may also say that the 'velocity' has changed.