Which of these provides the best evidence for Newton’s First Law of Motion? A
While sitting in a chair, you exert force on the chair, and the chair exerts the same amount of force back on you.

B
A basketball sitting on the basketball court doesn’t move until something pushes it.

C
You push a full shopping cart and an empty shopping cart. The empty shopping cart goes much faster than the full one.

D
You push your little brother on the swings, and he goes higher the harder you push him.

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s