Question 1

You are on a new planet and want to know the acceleration due to gravity. You take a ball and kick it at an angle of 13.0 at a speed of 21.3 m/s. If the ball is in the air for 6.30 s, what is the magnitude of the acceleration due to gravity?

Question 2

A battleship simultaneously fires two shells at enemy ships, as shown above. To hit the nearby ship (A), it launches a shell from one gun with a speed of 41.5 m/s at an angle of 77.5^oabove the horizon. To hit the far ship (B), it launches a shell from another gun with a speed of 95.5 m/s at an angle of 27.5^oabove the horizon. How much time is there between when each ship is hit?