A pogo stick has a spring with a spring constant of 2.5 x 104 N/m, which can be compressed 12.0 cm. To what maximum height from the uncompressed spring can a child jump on the stick using only the energy in the spring, if the child and stick have a total mass of 40 kg?
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- The spring in a retractable ballpoint pen is 1.8 cm long, with a 320 N/m spring constant. When the pen is retracted, the spring is compressed by 1.0 mm. When you click the button to extend the pen, you compress the spring by an additional 5.0 mm. How much energy is required to extend the spring?A bowling ball of mass m = 1.2 kg is launched from a spring compressed by a distance d = 0.31 m at an angle of θ = 36° measured from the horizontal. It is observed that the ball reaches a maximum height of h = 4.6 m, measured from the initial position of the ball. Let the gravitational potential energy be zero at the initial height of the bowling ball. what is the spring constant k, in newtons per meters? k = ?The figure shows an 8.4 kg stone at rest on a spring. The spring is compressed 12 cm by the stone. (a) What is the spring constant? (b) The stone is pushed down an additional 30 cm and released.What is the elastic potential energy of the compressed spring just before that release? (c) What is the change in the gravitational potential energy of the stone-Earth system when the stone moves from the release point to its maximum height? (d) What is that maximum height, measured from the release point? k (a) Number i Units (b) Number i Units (c) Number Units (d) Number Units > > >
- The figure shows an 7.9 kg stone at rest on a spring. The spring is compressed 11 cm by the stone. (a) What is the spring constant? (b) The stone is pushed down an additional 26 cm and released.What is the elastic potential energy of the compressed spring just before that release? (c) What is the change in the gravitational potential energy of the stone-Earth system when the stone moves from the release point to its maximum height? (d) What is that maximum height, measured from the release point? (a) Number Units (b) Number i Units (c) Number i Units (d) Number i UnitsYou have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 10-m-high hill, then descends 17 m to the track's lowest point. You've determined that the spring can be compressed a maximum of 2.5 m and that a loaded car will have a maximum mass of 400 kg. For safety reasons, the spring constant should be 13% larger than the minimum needed for the car to just make it over the top. k = 1.4x104 Submit Part B m Previous Answers Correct Correct answer is shown. Your answer 14174 significant figures than required for this part. V = What is the maximum speed of a 360 kg car if the spring is compressed the full amount? Express your answer with the appropriate units. ► View Available Hint(s) μÅ m ? was either rounded differently or us Value Units ! You have already submitted this answer. Enter a new answer. No credit lost. Try again.A vertical spring with a spring constant k = 40 N/CM is compressed 10.0 cm from equilibrium. A ball of mass 300 g is launched from the spring. What maximum height does the ball reach above its starting position.
- . A pogo stick has a spring with a spring constant of 2.5×104N/m,, which can be compressed 12.0 cm. To what maximum height from the uncompressed spring can a child jump on the stick using only the energy in the spring, if the child and stick have a total mass of 40 kg?When a chip jumps, the energy comes from the muscles, but also from an elastic protein which is subjected to a compression similar to that of a spring. If a chip, with a mass of 2.0 × 10-7 kg, jumps vertically from a height of 65 mm, and 75% of the energy comes from the elastic protein, determine the initial amount of this energy.A mass of 10.0 kg is attached to a spring on a frictionless horizontal surface. The spring constant k = 504 Newtons / meters. The spring is stretched a distance of 0.500 meters. At that point, what is the Potential Energy (in Joules) stored in the spring?