![2. A 400 N woman dives from a 7.5 m platform. a. What is her potential energy 5 m into the dive in [J]? Assume no external fo](http://img.homeworklib.com/questions/896e6a70-da78-11ea-b829-2f5768e69a48.png?x-oss-process=image/resize,w_560)
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2. A 400 N woman dives from a 7.5 m platform. a. What is her potential...
A 70kg woman dives from a 18m cliff. What is her velocity 5m into the dive...
A 70kg woman dives from a 18m cliff. What is her velocity 5m into the dive (in m/s)? Assume no external forces are applied during diving.
The platform height for Olympic divers is 10 m. A 60 kg diver steps off the...
The platform height for Olympic divers is 10 m. A 60 kg diver steps off the platform to begin her dive. a. How much gravitational potential energy does the diver have? 2. LOL b. How much kinetic energy does the diver have as she strikes the water? c. How much work does the water do on the diver to stop her motion? d. If the diver stops in 2.5 m after entering the water, what net force is applied to...
Belly-flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy...
Belly-flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy at the top is 15000 J (relative to the surface of the pool). What is his kinetic energy when his potential energy reduces to 1000 J?
A man having weight w=720 N crouches at the end of a diving platform, as shown in the figure.
Ti +Unet = Tf. Or, to summarize in words, the initial translational and rotational kinetic energy of a rigid body plus the work done by all the external forces and couple moments acting on the body as it moves from the initial to the final configuration is equal to the final total kinetic energy of the body.Part BA man having weight w=720 N crouches at the end of a diving
platform, as shown in the figure.(Figure 3)In the crouched position, the...
A person with mass mo drops from a diving platform into the pool ho meters below...
A person with mass mo drops from a diving platform into the pool ho meters below hat is the diver's gravitational potential energy when standing atop the platform? b. How much kinetic energy does the diver possess at impact? What is the diver's velocity vo at impact? d. What about a diver with mass m, -2mo? - what will their velocity v, be at impact? e. What if the diver with mass mo dives from a platform h-2ho meters -...
A man weighing 690 N and a woman weighing 400 N have the same momentum. What...
A man weighing 690 N and a woman weighing 400 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw
An object of mass 7.5 kg is attached to a spring constant 2.5 N/m. Starting from...
An object of mass 7.5 kg is attached to a spring constant 2.5 N/m. Starting from its maximum displacement at rest, the object undergoes simple harmonic oscillations of amplitude 53 cm. after 4.5 s have passed, determine: A) the objects position x=-0.45 m B) the objects velocity v= -0.16 m/s C) the objects acceleration a= 0.15 m/s2 D) the objects kinetic energy K= 0.095 J E) the potential energy store in the spring U=0.26J F) the total energy in the...
A block of mass 50 kg is sitting on a platform as shown in the figure...
A block of mass 50 kg is sitting on a platform as shown in the figure below. The platform sits on a spring with k = 2,200 N/m. The mass is initially at rest. (a) Add a coordinate system to this sketch. Choose File No file chosen This answer has not been graded yet. Where is a convenient place to choose the origin of the vertical (y) axis? This answer has not been graded yet. 0 be at the position...
5. A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the...
5. A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the water. After entering the water she continues falling through the water until she reaches a depth of 4.00 m. a. Calculate the work done on the woman by gravity and by the water. Ignore air resistance. b. What is the average net force exerted on her over this 4.00-m displacement in the water? c. How does the average net force exerted on the woman...
A sprinter increases her speed such that her kinetic energy increased from 200J to 1000J, in...
A sprinter increases her speed such that her kinetic energy increased from 200J to 1000J, in a 5 second span. During this time, how much mechanical work was done? (Assume there was no change in potential energy) Group of answer choices 160 J 800 J 160 Watts 800 Watts
The platform height for Olympic divers is 10 m. A 60 kg diver steps off the platform to begin her dive. a. How much gravitational potential energy does the diver have? 2. LOL b. How much kinetic energy does the diver have as she strikes the water? c. How much work does the water do on the diver to stop her motion? d. If the diver stops in 2.5 m after entering the water, what net force is applied to...
A person with mass mo drops from a diving platform into the pool ho meters below hat is the diver's gravitational potential energy when standing atop the platform? b. How much kinetic energy does the diver possess at impact? What is the diver's velocity vo at impact? d. What about a diver with mass m, -2mo? - what will their velocity v, be at impact? e. What if the diver with mass mo dives from a platform h-2ho meters -...
A block of mass 50 kg is sitting on a platform as shown in the figure below. The platform sits on a spring with k = 2,200 N/m. The mass is initially at rest. (a) Add a coordinate system to this sketch. Choose File No file chosen This answer has not been graded yet. Where is a convenient place to choose the origin of the vertical (y) axis? This answer has not been graded yet. 0 be at the position...
5. A 65.0-kg woman steps off a 10.0-m diving platform and drops straight down into the water. After entering the water she continues falling through the water until she reaches a depth of 4.00 m. a. Calculate the work done on the woman by gravity and by the water. Ignore air resistance. b. What is the average net force exerted on her over this 4.00-m displacement in the water? c. How does the average net force exerted on the woman...
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