Question

In: Physics

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.

Solutions

Expert Solution

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.

Final horizontal velocity,

Final vertical velocity,

-----------------

Use formula ,to find the top point above water the diver falls

----------------------

Height to top point to top of diving board =

Use formula ,to find initial vertical velocity

==============

Since there is no acceleration in horizontal direction

ANSWER:

========================


Related Solutions

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 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 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...
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 communications satellite is in a synchronous orbit that is 3.09×107m directly above the equator. The...
A communications satellite is in a synchronous orbit that is 3.09×107m directly above the equator. The satellite is located midway between Quito, Equador, and Belem, Brazil, two cities almost on the equator that are separated by a distance of 3.48×106m. Calculate the time it takes for a telephone call to go by way of satellite between these cities. Ignore the curvature of the earth.
During a test a rocket travels upward at 75 meters/second, and when it is 40 meters...
During a test a rocket travels upward at 75 meters/second, and when it is 40 meters from the ground its engine fails. Determine the maximum height h reached by the rocket and its speed just before it hits the ground. While in motion the rocket is subjected to a constant downward acceleration of 9.81 m/s2 due to gravity. Neglect the effect of air resistance.
A rocket is fired upward from some initial height above the ground
11. A rocket is fired upward from some initial height above the ground. Its height h in feet above the ground t seconds after it is fired is given by h = -16t2 + 48t +448.(i) What is its initial height? __________ ft. (ii) What is its maximum height? ___________ ft.(iii) How long does it take to reach the ground? __________ sec.
A rock is thrown upward from a bridge that is 31 feet above a road. The...
A rock is thrown upward from a bridge that is 31 feet above a road. The rock reaches its maximum height above the road 0.57 seconds after it is thrown and contacts the road 2.53 seconds after it was thrown. Write a function ff that determines the rock's height above the road (in feet) in terms of the number of seconds tt since the rock was thrown. f(t)=
A rock is thrown upward from a bridge that is 59 feet above a road. The...
A rock is thrown upward from a bridge that is 59 feet above a road. The rock reaches its maximum height above the road 0.9 seconds after it is thrown and contacts the road 2.4 seconds after it was thrown. Write a function f that determines the rock's height above the road (in feet) in terms of the number of seconds t since the rock was thrown. f(t)=    Hint: the function f can be written in the form f(t)=c⋅(t−t1)(t−t2) for...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT