A pitched ball is hit by a batter at a 45° angle and just clears the outfield fence, 104 m away. If the fence is at the same height as the pitch, find the velocity of the ball when it left the bat. Ignore air resistance.
A 230-kg crate is pushed horizontally with a force of 680 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
It is much appreciated
A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second2 to a full stop. How far does the roller coaster travel during its deceleration?
In the area where I have to list my senior classes, there is a space next to the course title that is labeled "term/yr" and I am unsure of what to write there.