In class problems Type 3 problems Max Height? Physics Tuesday 10-30 In class problems Type 3 problems Max Height?

Working on the problems posted in class 1-5

Problem #1 A player kicks a football from the ground level with a velocity of magnitude 27.0 m/s at an angle pf 30.0° above the horizontal. a) find the ‘hang time’, that is the time the ball is in the air. b) the distance the ball travels before it hits the ground

Problem #2 A player kicks a football from the ground level with a velocity of magnitude 27.0 m/s at an angle pf 60.0° above the horizontal. a) find the ‘hang time’, that is the time the ball is in the air. b) the distance the ball travels before it hits the ground

Problem #3 A beach ball, moving with a speed of +1.27 m/s. rolls off a pier and hits the water 0.75 m from the end of the pier. How high above the water is the pier?

Problem #4 A shot put is released with a velocity of 12 m/s and stays in the air for 2.0 s. At what angle with the horizontal was it released? What horizontal distance did it travel

Problem #5 An archer stands 40.0 m from the target. If the arrow is shot horizontally with a velocity of 90.0 m/s, how far above the bulls-eye must he aim to compensate for gravity pulling his arrow downward?

Answers Problem #1 a) 2.76 s b)64.5 m Problem #2 a) 4.78 s b) 64.5 nm a) 55° b) 14m Problem #5 a) 0.966 m

Challenge problem A rude tourist throws a peach pit horizontally with 7.0 m/s velocity out of an elevator cage. The elevator is moving upward with a constant velocity of 8.5 m/s velocity. How long will it take the peach pit to land on the ground, 17.0 m below his initial position?

Type 3 problems Firefighters are using water from hose to put out a fire 13.5 m above the ground. The nozzle of the hose stands 0.75 m above the ground. If the water comes out 44.5 m/s at 49° above the horizontal, how far away from the building should the firefighters stand?

Monster problem #2 The class will create a type 3 problem Solve on your own for homework

Maximum height Occurs at the apex of the arc. The vertical velocity at that point is _____ Put a third column in chart Title “max v” The “d” in the max v column is the max height from surface If shot off a cliff, add cliff to “max v” d to get height from bottom of cliff

H V Max V a -9.8 d Vi Vf t