Afugitive tries to hop on a freight train traveling at a constant speed of 5.5 m/s. just as an empty box car passes him, the fugitive starts from rest and accelerates at a = 2.5 m/s2 to his maximum speed of 8 m/s. (a) how long does it take him to catch up to the empty box car? s (b) what is the distance traveled to reach the box car?

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force