Near the surface of the earth, a projectile is fired from a canon at an angle of degrees above the horizon and an initial velocity of meters per second. Which of the following expressions gives the time it takes the projectile to reach its maximum height?

Near the surface of the earth, a projectile is fired from a canon at an angle of degrees above the horizon and an initial velocity of meters per second. Which of the following expressions gives the time it takes the projectile to reach its maximum height?

Near the surface of the earth, a projectile is fired from a canon at an angle of degrees above the horizon and an initial velocity of meters per second. Which of the following expressions gives the time it takes the projectile to reach its maximum height?

If air resistance is negligible, 8 seconds after it is released, what would be the velocity of a stone dropped from a helicopter that has a horizontal velocity of 60 meters per second?

If air resistance is negligible, 8 seconds after it is released, what would be the velocity of a stone dropped from a helicopter that has a horizontal velocity of 60 meters per second?

If air resistance is negligible, 8 seconds after it is released, what would be the velocity of a stone dropped from a helicopter that has a horizontal velocity of 60 meters per second?

Which of these is not an example of Newtonian mechanics?

Which of these is not an example of Newtonian mechanics?

Sam throws a rock off the edge of a tall building at an angle of from the horizontal. The rock has an initial speed of .

At what angle to the horizontal will the rock impact the ground?

Sam throws a rock off the edge of a tall building at an angle of from the horizontal. The rock has an initial speed of .

At what angle to the horizontal will the rock impact the ground?