Please show work

SHOW YOUR WORK 1) A mountain climber encounters a gap in an ice field. The opposite side of the gap is 2.75m lower, and is separated horizontally by a distance of 4.1m. To cross the crevasse, the climber gets a running start and jumps in the horizontal direction. (A) What is the minimum speed needed by the climber to safely cross the gap? (B) What is the climber's velocity right before landing? 2) In the middle of the night you are standing a horizontal distance of 14.0 m from the high fence that surrounds the estate of your boyfriend you're madly in love with. The top of the fence is 5.00 m above the ground. You have taped an important message to a rock that you want to throw over the fence. The ground is level, and the width of the fence is small enough to be ignored. You throw the rock from a height of 1.60 m above the ground and at an angle of 44.0 degrees above the horizontal. (A) What minimum initial speed must the rock have as it leaves your hand to clear the top of the fence? (B) What is the final velocity of the rock? 3) A snowball rolls off a barn roof that slopes downward at an angle of 40 degrees below the horizontal. The edge of the roof is 14m above the ground, and the snowball has a speed of 7 m/s as it rolls off the roof. (A) How far from the edge of the barn does the snowball strike the ground? (B) A man 1.9 m tall is standing 4 meters from the edge of the barn. Will he be hit by the snowball