5A Material point of mass m moves under the influence of force F-kr = – krî = With in other words, the mass m is at the tip of an isotropic harmonic oscillator with equilibrium position at the origin of the axes. a) Calculate the potential energy V(r) of m. b) To design qualitatively 1) the potential energy V(r) of the mass m, 2) its "centrifugal" dynamic energy (r) = 1²/2mr² where L is the measure of angular momentum of the mass m and r its distance from the origin of the axes, and 3) the active potential energy of U(r) = V (r)+ Vo(r). "
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- 2 (a) Write down the equation of motion for the point particle of mass m moving in the Kepler potential U(x) = -A/x+B/x² where x is the particle displacement in m. (b) Introduce a dissipative term in the equation of motion assuming that the dissipative force acting on a particle is proportional to the partical velocity with the coefficient of proportionality v. Write down the modified equation of motion. (c) Determine the dimensions of parameters A, B, vin SI system of units.A 500 kg communication satellite is to be placed in geostationary orbit around the Earth. a)How high does it have to go to have the same period as the Earth? b)What is the gravitational potential energy of the satellite before going into orbit? c)What is the total energy of the satellite in geostationary orbit? d)What is the work that the rocket must do to place the satellite in geostationary orbit?Problem #1: The massless spring of a spring gun has a force constant =10N/cm. When the gun is aimed vertically, a 12-g projectile is shot to a height of 5.0 m above the end of the expanded spring. (See below.) a. What distance, d, was the spring compressed initially? b. What speed does the ball have when it is a height of 2.0m above the equilibrium position of the spring? 5.0 m d NNNNNNNN CNNNNNNN
- A mass m is at rest at O when suspended from a spring, as shown in the image. When the spring is pulled down and released, it oscillates between positions A and B. Please choose the correct statement(s) about the system consisting of the spring and the mass. The gravitational potential energy of the system is greatest at A. The elastic potential energy of the system is greatest at O. The kinetic energy of the system is greatest at 0. The gravitational potential energy is smallest at O. The elastic potential energy is smallest at 0.A-C please!Use g 9.8 m/s?. %D You have a light spring which obeys Hooke's law. This spring stretches 3.28 cm vertically when a 2.90 kg object is suspended from it. Determine the following. (a) the force constant of the spring (in N/m) N/m (b) the distance (in cm) the spring stretches if you replace the 2.90 kg object with a 1.45 kg object cm (c) the amount of work (in J) an external agent must do to stretch the spring 7.50 cm from its unstretched position
- A box with mass of 150 kg is released from point A, 43 meters above the ground. The box slides without friction and then collides with a massless spring that is initially uncompressed. a) What is the total energy of the system? b) What is the speed of the box right before colliding with the spring? After colliding with the spring, the box gets stuck to the spring and starts oscillating back and forth. c) If the spring constant is 300 N/m, what is the amplitude of oscillation for the box-spring system? d) When the spring is compressed by Δs = 1.5 m, find the speed of the box. e) Find the maximum acceleration experienced by the box. f) What is the period of oscillation?3. Please provide full body diagram with explanationA simple pendulum swings back and forth in a circular path. Including the effects of air resistance, determine which statement is true. There may be more than one correct answer. A. After the pendulum is released, it will never return to its original height. B. The total linear acceleration vector always points towards the center of the circular path as the pendulum swings back and forth. C. The work done by air resistance is always negative as the pendulum swings back and forth D. The work done by the tension force is always zero as the pendulum swings back and forth E. The gravitational force always produces a counterclockwise torque as the pendulum swings back and forth.
- 10. A 5kg mass is attached to a spring. If the elongation of spring is 6cm determine the potential energy of elastic spring. Acceleration due to gravity is 10m/s^2. Derive with the formula below, show the cancellation, explain the step by step and draw a free body diagram/figure. refer with this: PE1 + KE1 + U1 + WF1 + Q1 + W1 = PE2 + KE2 + U2 + WF2 + Q2 + W2 + E losses.Problem 1 A 1-kg block is 3 meters from a light spring. The coefficient of kinetic friction between the floor and the block is 0.25 (the coefficient of friction is the same on the entire surface). The block has a speed of 3 m/s when it hits the spring that has a force constant of 50 N/m. The block comes to rest when it has compressed the spring a maximum distance d. Find: 1. The speed of the object at the beginning of the 3 meters. 2. The value of the maximum compression d. k mm A person is pushing a wooden crate of mass mo = 20 kg at a constant speed vo = 1.2– for Ax = 3 m along a rough horizontal floor that has a coefficient of friction µk = .4.