Need help with physics problems please! Thank you!

1. A worker drops a wrench from the 15th floor of a building. Each floor is 3.0 m tall. Calculate the time it takes the wrench to reach the 4th floor.
2. A hovering gull drops a clam and it takes 1.5 s to hit the rocks below.
   1. a)Calculate the height it fell.
   2. b)Calculate its final velocity as it hits the rocks.
3. A skydiver with an open parachute descends straight down at a constant speed of 3.0 m/s. When he is 80 m from the ground, he drops his camera. Calculate the time it takes for the camera to hit the ground.
4. You run at 4.0 m/s diagonally (from corner to corner) across a sports field that is 100 m long and 50 m wide.
   1. a)Calculate your velocity in the long direction of the field.
   2. b)Calculate your velocity in the wide direction of the field.

HW 2 (Always ignore air resistance and use ay = -9.8 m/s for falling or projectile objects) (#8 and one other problem both require the quadratic formula.) 1. A worker drops a wrench from the 15 floor of a building. Each floor is 3.0 m tall. Calculate the time it takes the wrench to reach the 4th floor. 2. A hovering gull drops a clam and it takes 1.5 s to hit the rocks below. a) Calculate the height it fell. b) Calculate its final velocity as it hits the rocks. 3. A skydiver with an open parachute descends straight down at a constant speed of 3.0 m/s. When he is 80 m from the ground, he drops his camera. Calculate the time it takes for the camera to hit the ground. 4. You run at 4.0 m/s diagonally (from corner to corner) across a sports field that is 100 m long and 50 m wide. a) Calculate your velocity in the long direction of the field. b) Calculate your velocity in the wide direction of the field