A 65.0 kg bungee jumper uses a cord that is 7.66 m long when unstretched with a spring constant of 140 N/m. What is the maximum speed of the bungee jumper? (Give your answer in m/s.)

A large toy car is pushed horizontally by a spring, and the spring has a spring constant of 135 N/m. What is the mass of the toy car if compressing the spring 0.055 m (before the toy starts moving) causes it to reach a speed of 0.75 mis? (Note - the height of the toy does not change.) Solve the problem. (If you get the answer wrong, you can get 0.5 points for correct units.)

A heavy block is suspended from a vertical spring. The elastic potential energy stored in the spring is 0.80 J. What is the stretch of the spring if the spring constant is 100.0 N/m?  Question 11 options:   2 .0 cm   4.0 cm   8.0 cm   10.0 cm   13.0 cm

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44. Starting from rest, a 64.0-kg person bungee jumps from QIC a tethered hot-air balloon 65.0 m above the ground. The bungee cord has negligible mass and unstretched length 25.8 m. One end is tied to the basket of the balloon and the other end to a harness around the person's body. The cord is modeled as a spring that obeys Hooke's law with a spring constant of 81.0 N/m, and the person's body is modeled as

An orthodontic spring, connected between the upper and lower jaws, is adjusted to provide no force with the mouth open. When the patient closes her mouth, however, the spring compresses by 6.0 mm. What force is exerted if the spring constant is 160 N/m?

A marble with a mass of 0.085 kg compresses a spring 5.1 cm. If the spring has a constant k = 150 N/m, what will the velocity of the marble be when it's released?

A spring has a spring constant of 10 N/cm and a spring potential energy of 6 J.  Determine the stretch of the spring in cm.  Rearrange U = 1/2 kx^2 and solve for x.

At what speed does the arrow leave the bow and at what speed does it strike the apple?

A 1500-kg car moving at 20 m/s hits an initially uncompressed horizontal ideal spring. What is the spring constant if the maximum distance the spring compresses is 0.5 m? 2.4 x 10° N/m 3.0 x 106 N/m 2.0 x 106 N/m 1.0 x 106 N/m