1. A clam dropped by a seagull takes 3.0 seconds to hit the ground. What is the seagull’s approximate height above the ground at the time the clam was dropped?
15 m
30. m
45 m
90. m

2.A cannon with a muzzle velocity of 500. meters per second fires a cannonball at an angle of 30.° above the horizontal. What is the vertical component of the cannonball’s velocity as it leaves the cannon?
0.0 m/s
250. m/s
433 m/s
500. m/s

what formals do i use? and how do i do it? ur help is greatly appreciated!