Bill steps off a 3.0-m-high diving board and drops to the water below. at the same time, ted jumps upward with a speed of 4.2 m/s from a 1.0-m-high diving board. choosing the origin to be at the water's surface, and upward to be the positive x direction, write x-versus-t equations of motion for both bill and ted.

equation of  motion for Bill is

equation of  motion for Ted is

Explanation:

Taking downward position positive and upward position negative

g = 9.8 m/s^2

equation of  motion for Bill is

equation of  motion for Ted is

For Bill:

For Ted:

Explanation:

For Bill:

Now using equation of motion,we have

 ,

Thus,equation becomes

Taking acceleration upward positive and downward negative.

   for bill

For Ted

Using the same equation

Substitute values

Thus equation becomes

  for Ted

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.