Module 26- elastic potential energy Saturday, October 14, 2023 12:07 PM 1. A spring that obeys Hooke's law has a spring force constant of 236 N/m. This spring is then stretched by 25.2 cm. a. b. What is the magnitude of the force required to stretch the spring by this distance? What is the potential energy of the spring when it is stretched by this distance? 2. You have a light spring which obeys Hooke's law. This spring stretches 2.90 cm vertically when a 2.30 kg object is suspended from it. Determine the following. a. the force constant of the spring (in N/m) 3. b. the distance (in cm) the spring stretches if you replace the 2.30 kg object with a 1.15 kg object C. the amount of work (in J) an external agent must do to stretch the spring 7.80 cm from its unstretched position As shown in the figure below, a box of mass m = 5.20 kg is sliding across a horizontal frictionless surface with an initial speed Vi 3.20 m/s when it encounters a spring of constant k = 2450 N/m. 4. The box comes momentarily to rest after compressing the spring some amount Xc. Determine the final compression Xc (in m) of the spring. A box slides from rest down a frictionless ramp inclined at 39.0 with respect to the horizontal and is stopped at the bottom of the ramp by a spring with a spring constant of k = 3.00 X 104 N/m. point of release compression of spring y=0 If the box has a mass of 12.0 kg and slides 3.00 m from the point of release to the point where it comes to rest against the spring, determine the compression (in m) of the spring when the box comes to rest.