A 30 kg child is jogging until he hits a swing with a mass of 4 kg. If he was running at 4 m/s, find the final velocities, and max height of the swing assuming the swing rope is weightless

Q: 12. A vertically mounted spring (k = 750 N/m) is compressed by 30.0 cm relative to its unstrained…

A: Spring constant = 750N/m Initially compression in spring =30cm Given mass =0.24kg Height =10.76m

Q: what is the kinectic energy of this Object at this point

A: Answer is 0.5 J. Find explanation in next step .

Q: 22. A 200 kg roller coaster begins from rest. The ride reaches a maximum height of 30 m and a top…

A:

Q: Important note: Unless otherwise stated, your answers must be in SI units. A block with mass m =…

A:

Q: A ball is dropped from rest at the top of a 4.94-m-tall building, falls straight downward, collides…

A:

Q: The force F = (-4, -1.7) N acts on a mass of 0.85 kg. At time t = 0 s, the mass has a velocity vo =…

A:

Q: follows the curved track in the figure.

A:

Q: A block of mass m2 = 8.3 kg, at rest on a horizontal surface that has negligible friction, is…

A:

Q: A ball of mass m is shot from a spring gun whose spring has a force constant k. The spring can be…

A: When the spring of the gun is compress by Δx.The internal force of the spring is F=k*Δx and  the…

Q: You construct a dart gun using a spring that has a spring constant of 250 N/m.  The dart you wish to…

A:

Q: A 10 kg object is moving in a straight-line with an initial speed of 2 m/s. How long (in s) will it…

A:

Q: A ball is dropped from rest at the top of a 5.44-m-tall building, falls straight downward, collides…

A:

Q: A wooden block of mass M, attached to a massless spring with spring constant k, rests on its…

A:

Q: 6. A spring gun has a constant of K= 650N/m. It is compressed a distance x 0.04m and a ball of mass…

A:

Q: A block of mass 3000 g is attached to a spring whose

A: Given: Mass of a block is m=3000g=3kg Spring constant k=8N/m θ=37o. Distance x=60cm=0.60m.…

Q: The line of action of the 5490-lb force runs through the points A and B as shown in the figure.…

A:

Q: A spring-mass system has a spring with spring constant k=65.0 N/m and a 800.0 gram mass on the end…

A:

Q: object of mass 357 g is suspended from a spring with a spring constant of 200 N/m, the extension of…

A: F= kx

Q: A boy wants use his slingshot to shoot a water balloon into the air. His slingshot has a spring…

A:

Q: Mass m is on a rough surface of mass M (µ coefficient of friction). M is on a smooth surface and…

A: Given information:L The initial velocity given to the block of mass "m" = V0 The coefficient of…

Q: At the neighborhood playground, your friend sits on a swing and gets pulled back by you to the…

A: arc length after nth swing is given asLn=(0.80)nL0                   (1)where n=1, 2, 3.....L0=14…

Q: The system shown in the figure consists of a light, inextensible cord, light frictionless pulleys,…

A: Find the speed of block A as shown in the figure, which consists of a light, inextensible cord,…

Q: Ignoring the mass of the spring, what is the mass m of the fish?

A:

Q: Figure Shows load hanging from the ceiling of an elevator that is moving at constant velocity. Take…

A:

Q: A 2.0 kg mass is placed against a spring of force constant 800 N/m, which has been compressed 0.22…

A:

Q: 3. An object of mass, m = 56 kg starts to slide from rest on a curved ramp from height, H = 37 m…

A:

Q: 1. A 5.0000 x 10-kg subway train is brought to a stop from a speed of 0.6000 m/s in 0.3000 m by a…

A: Given, A subway train of mass m=5.00×105kg moving with a speed  vi=0.600 m/s is brought to rest in…

Q: Blocks 1 and 2, with masses m₁ and m2, are placed on a frictionless, horizontal table with an ideal…

A:

Q: A horizontal spring is compressed a distance of 0.1 meters by a block of mass 10 kg. Assume that…

A: When a spring is compressed, a potential energy is stored in the spring due to its compression,…

Q: Ux (m/s) 3.0 2.0 1.0 0 -1.0 -2.0 1.0 20 Your Answer: 3.0 A ball moves in a straight line (the…

A:

Q: The adjacent figure shows a box of mass 2 kg moving on a horizontal, frictionless surface (ulall z)…

A: Given that: The figure is, Mass of box, m=2 kg Velocity of the box, v=6 m/s Spring constant, k=1000…

Q: A slingshot, which can be modeled as a spring with spring constant k = 56.4 N/m, is stretched by 16…

A:

Q: The problem uses the ideal spring force, in one dimension.  F = -kx, where x is the deviation from…

A: The maximum speed for a particle performing simple harmonic motion is given asv=AωA is the amplitude…

Q: A 110 kg block is pushed with a force of 340 N in the direction indicated on the image, on a plane…

A:

Q: In the figure below, a block of m= mass 19 kg is released from rest on a frictionless incline angled…

A: mass of block (m) = 19 kg Angle (θ) = 30ocompression (d') = 2 cm  if force applied (f) = 240 N using…

Q: Q.10. A body is moving unidirectionally under the influence of a source of constant power. Its…

A: Given data: The body is moving in one direction only.

Q: www +0.25 m A 0.60 m m B A 0.500-kg block, attached to a spring with length 0.60 m, is at rest with…

A: Given Data: Mass of block: m= 0.50 Kg Original Length of spring: L= 0.60 m Pull Force on block: F=…

Q: ck, and the spring e spring constant i

A: Given: Block's mass is 4.3 Kg Spring compressed to 16 cm Spring constant is 120 N/m

Q: Which of the following expressions will have units of kg-m/s²? Select all that apply, where x is…

A: To find units of a quantity we do dimensional analysis.  For mass, it's [M] For length, it's [L] For…

Q: The 5 N cylinder is falling from A with a speed va = 10 m/s onto the platform. Determine the maximum…

A:

Q: *********** You attach a 2.10 kg weight to a horizontal spring that is fixed at one end. You pull…

A: As there is no friction in between the surfaces. Therefore only gravitational and spring force are…

Q: Problem 4: For the system of blocks shown, determine the distance block a will attain a velocity of…

A:

Q: A block of mass m = 12.0 kg is pressed against a spring of spring constant k = 300 N/m, compressing…

A: Calculate the potential energy stored in the compressed spring.The potential energy stored in a…

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.