Madelin fires a bullet horizontally. The rifle is 1.6 meters above the ground. The bullet travels 170 meters horizont before it hits the ground. What speed did Madelin's bullet have when it exited the rifle?

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.

I’ve been stuck on this for a while

When barack obama was running for president, at a campaign stop he tried to bowl, something he isn't very good at. the media loved it because he threw a gutter ball while they were all watching. this is an example of: