Your friend is trying to jump over a 13 foot tall fence that is 6 feet away from

Question

Your friend is trying to jump over a 13 foot tall fence that is 6 feet away from her. She is on the roof of a 10 feet tall building. She sprints twords the fence at 20 miles per hour and jumps at a 50 degree angle.

(a) Will she clear the fence?

(b) If she clears the fence, find her vertical speed when she hits the ground (in miles per hour). If she doesn

Your friend is trying to jump over a 13 foot tall fence that is 6 feet away from her. She is on the roof of a 10 feet tall building. She sprints twords the fence at 20 miles per hour and jumps at a 50 degree angle. (a) Will she clear the fence? (b) If she clears the fence, find her vertical speed when she hits the ground (in miles per hour). If she doesn?t clear the fence, assume she begins falling, due to gravity, vertically downward from the spot where she hit the fence, and find her velocity when she hits the ground. Note: At time t, force of gravity g approx 32 ft/s^2 , initial velocity v0, and angle theta, a projectile (Your friend) satisfies these equations horizontal position:

Explanation / Answer

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