P1.- A high diver leaves the end of a 5.0 m high diving board and strikes...

P1.- A high diver leaves the end of a 5.0 m high diving board and strikes the water 1.3 s later, 3.0 m beyond the end of the board. Considering the diver as a particle, determine: (a) her initial velocity Vo (b) the maximum height reached, (c) the velocity Vf with which she enters the water.

P2.- A rollercoaster moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. It next travels 135 ft at an angle of 40 degrees downward. What is its displacement from its starting point?

P3.- A model rocket is launched straight upward with an initial speed of 50 m/s. It accelerates with a constant upward acceleration of 2 m/s2 until its engines stop at an altitude of 150 m.

a) What is the maximum height reached by the rocket?

b) How long after liftoff does the rocket reaches its maximum height?

c) How long is the rocket in the air?

Expert Solution

genius_generous answered 1 year ago

A diver springs off a 10 m high diving board. If he leaves the board with...

A diver springs off a 10 m high diving board. If he leaves the board with an initial upward velocity of 5.0 m/sec, a.) How high will he rise above the diving board? b.) How long will he be in the air before he hits the water?

A 55-kg diver stands at the end of a diving board located 10 m above the...

A 55-kg diver stands at the end of a diving board located 10 m above the water level. The diving board is held down at one end by an anchor bolt. The fulcrum is located at 1.4 m from the bolt and the total length of the board is 3.9 m. Draw a free body diagram showing the forces acting on the diver. Calculate the torque that she exerts on the board with respect to the fulcrum. Neglect the mass of the...

1) A diver of mass 43.0kg stands on the end of a uniform diving board over...

1) A diver of mass 43.0kg stands on the end of a uniform diving board over the water. The board is 7.00m long and has a mass of 75kg. The end of the board opposite the diver is attached to the platform. The bounce of the board is adjusted by a roller underneath that can be moved back and forth. The roller is 2.80 m from the fixed end of the board. a) What are the magnitude and the direction...

A diver leaves a 3-m board on a trajectory that takes her 2.2m above the board...

A diver leaves a 3-m board on a trajectory that takes her 2.2m above the board and then into the water 2.6m horizontally from the end of the board. Part A At what speed did she leave the board? Express your answer to two significant figures and include the appropriate units. v = SubmitMy AnswersGive Up Part B At what angle did she leave the board? Express your answer using two significant figures. ? = ? SubmitMy AnswersGive Up

A diving board of length 3.00 m is supported at a point 1.00 m from the end

A diving board of length 3.00 m is supported at a point 1.00 m from the end, and a diver weighing 480 N stands at the free end (Figure 1) The diving board is of uniform cross section and weighs 300 N. Find the magnitude of the force at the support point. Find the direction of the force at the support point. Find the magnitude of the force at the left-hand end. Find the direction of the force at the left-hand...

An Olympic diver is on a diving platform 6.40 m above the water. To start her...

An Olympic diver is on a diving platform 6.40 m above the water. To start her dive, she runs off of the platform with a speed of 1.21 m/s in the horizontal direction. What is the diver's speed just before she enters the water? m/s A football is kicked from ground level with an initial velocity of 20.6 m/s at angle of 57.0° above the horizontal.How long is the football in the air before it hits the ground? Ignore air...

A diving board of length 3.00 m is supported at a point 1.00 m from the...

A diving board of length 3.00 m is supported at a point 1.00 m from the end, and a diver weighing 520 N stands at the free end. The diving board is of uniform cross section and weighs 295 N. 1) Find the magnitude of the force at the support point. 2) Find the direction of the force at the support point. (upward or downward) 3) Find the magnitude of the force at the left-hand end. 4) Find the direction...

A diver springs upward from a board that is 2.70 m above the water. At the...

A diver springs upward from a board that is 2.70 m above the water. At the instant she contacts the water her speed is 11.7 m/s and her body makes an angle of 64.4 ° with respect to the horizontal surface of the water. Determine her initial velocity, both (a) magnitude and (b) direction.

1) Jason Statham jumps off of a diving board which is 3.0 m above the water...

1) Jason Statham jumps off of a diving board which is 3.0 m above the water surface. He lands traveling at 8.90 m/s at an angle of 75° with respect to the horizontal. (a) What was his initial take-off speed and direction? (b) Use the Order of Magnitude sense-making technique to check the validity of your answer to part (a). 2) An astronaut shipwrecked on a distant planet with unknown characteristics is on top of a cliff, which she wishes...

A person jumps upward off a diving board at 6.0 m/s and hits the water 2.0...

A person jumps upward off a diving board at 6.0 m/s and hits the water 2.0 seconds later (including the up and down time). About how fast will she be going just before she hits the water?

Question