A springboard diver jumps up and comes back to the level of the board after 0.81...

A springboard diver jumps up and comes back to the level of the board after 0.81 s. What was her speed as she leaves the board? How high (above the board) did she reach? A toy rocket stops accelerating when it reaches a height of 30 m. Its speed is 30 m/s at this point and continues upward. Take time to be zero at this point. (a) How fast is it moving when it is at a height of 40.0 m? (b) How much time is required from t = 0 to reach this height? (c) Why are there two answers to (b)?

Expert Solution

A bunch of problems on kinematics of vertically thrown objects

genius_generous answered 1 month 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 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 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.

A diver springs upward from a board that is 3.09 meters above the water. At the...

A diver springs upward from a board that is 3.09 meters above the water. At the instant she contacts the water her speed is 8.52 m/s and her body makes an angle of 71.8° with respect to the horizontal surface of the water. Determine her initial velocity.

“The room eats up sound. So little comes back that I cannot hear anything much.” What...

“The room eats up sound. So little comes back that I cannot hear anything much.” What type of room is this? Suggest solution / solutions for this problem.Explain briefly

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...

You are a faith community nurse; after Sunday Service a lady comes up to you and...

You are a faith community nurse; after Sunday Service a lady comes up to you and complains of a weepy mushy red rash on her chest, You see , at her neckline, that it is serious. Upon questioning, she tells you that she has been on an antibiotic for the past 3 days. She is a timid elderly lady who is not assertive when dealing with their PCP or the health care system. Outline the appropriate assessment, intervention, and educational...

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...

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...

A.) A scuba diver, submerged under water, looks up and sees sunlight at an angle of...

A.) A scuba diver, submerged under water, looks up and sees sunlight at an angle of 11.0° from the vertical. At what angle, measured from the vertical, does this sunlight strike the surface of the water? Assume water has a refraction index of 1.333. B.) To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto...

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