The free fall distance for Earth is given by the formula D=4.9* T , where Dis distance in meters and T is time in seconds. How long would it take a
package dropped from a plane flying at 8,300 meters (25,000 feer) to land
on the ground?

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.