An elastic cord is 61 cm long when a weight of 75 N hangs from it but is 85 cm long when a weight of 210 N hangs from it. What is the “spring” constant k of this elastic cord? also, find the frequency of the motion with the 210N object hanging on it (Physics 'Algebra base')
An elastic cord is 61 cm long when a weight of 75 N hangs from it...
An elastic cord is 70 cm long when a weight of 80 N hangs from it but is 84 cm long when a weight of 200 N hangs from it. What is the "spring" constant k of this elastic cord? Express your answer to two significant figures and include the appropriate units.
A vertical elastic cord is stretched 0.306 m when a mass 1.66 kg is attached to it. The cord is then stretched an additional 0.114 m and released from rest. Assuming the cord is an ideal linear spring, how long does it take for the mass to reach its original equilibrium position? HINTS: First find the elastic constant of the elastic cord, using the fact that the gravitational weight mg of the mass is balanced by the upward pull of...
A 84.0 kg daredevil exhibitionist hangs on to the end of a long bungee cord attached to the railing of the Brooklyn Bridge and oscillates vertically. (Do NOT try this!) The spring constant of the bungee cord is 105 N/m, and the system's damping constant is 0.137 kg/s. How long does it take for the oscillation amplitude to decrease to 90.6 % of its initial value? time: s What is the frequency of oscillation? frequency: Hz
A 64.0 kg daredevil exhibitionist hangs on to the end of a long bungee cord attached to the railing of the Brooklyn Bridge and oscillates vertically. (Do NOT try this!) The spring constant of the bungee cord is 1.10×102 N/m, and the system's damping constant is 0.116 kg/s. How long does it take for the oscillation amplitude to decrease to 93.1 % of its initial value? time: s What is the frequency of oscillation? frequency: Hz
As indicated in the figure, a steel ball (m 200 g) is attached to a massless elastic cord which is initially not stretched. When the ball is released from rest at A, t slides without friction through a thin curved tube with constant radius of curvature r = 70.0 cm. The cord stretches as the ball slides down the tube and follows the curvature of the surface, as indicated by the thick dashed line in the figure. Furthermore, the cord...
A spring streches 0.3m when a 2-kg weight hangs from it. (a)What is the spring constant? (b)What will be the frequency and amplitude of vibration if the weight is pulled down 0.2m more and released so that it vibrates up and down?
A 5.10 kg block hangs from a spring with spring constant 1760 N/m . The block is pulled down 6.80 cm from the equilibrium position and given an initial velocity of 1.20 m/s back toward equilibrium. A) What is the frequency of the motion? B) What is the amplitude? C)What is the total mechanical energy of the motion?
A 5.40 kg block hangs from a spring with spring constant 2020 N/m . The block is pulled down 6.10 cm from the equilibrium position and given an initial velocity of 1.20 m/s back toward equilibrium. a. What is the frequency of the motion? b. What is the amplitude? c. What is the total mechanical energy of the motion?
An 8kg ball hangs from a 2m long cord, when the ball is at an
angle of 30 degrees calculate the normal and tangental acceleration
components .
A spring stretches 25.7 cm from equilibrium when it hangs vertically with a 1.56 kg mass attached to the spring. a) What is the spring constant of the spring? b) If the spring is pulled further down and released, what is the frequency of the oscillation?