3. Calculate the final stretched length in each of the two springs required to hold the 20 kg crate in the equilibrium position shown in Fig. Q3. Each spring has an unstretched length of 2 m and a stiffness of k = 200 N/m. CAPT B 4 m. Fig. Q3 12 m 6m
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- 10. A certain spring has 15.0 J of elastic potential energy stored when compressed 0.26 m. The spring is now cut into two equal pieces. How much elastic potential energy is stored in one piece when compressed 0.30 m? 60 f60 ssf60 ssfoA spring that has stiffness constant 224N/m rests at its equilibrium length of 14cm, with one end hanging from a ceiling. You gently hang a block of mass 2.1 kg onto the end of the spring, the spring stretches beyond its equilibrium length, and you gently bring the spring to rest at its new equilibrium position.a) Determine the magnitude of the displacement of the spring. b) Determine the elastic potential energy stored in the spring.9
- 108 EX 25,561 3 D 7. When a 0.38-kg block is suspended on a vertical spring, it causes it to stretch 3.30 cm. If the block is now pulled 8.50 cm below its equilibrium position and released, what is the speed of the block when it is 4.00 cm below the equilibrium position? 0.87 AFNERAL BIOLOOK C $ MAL 2 22 R F 888 F4 -INDOLO 96 5 T G 011 X 0.887 m/s 6 B tv MacBook Air Y H & 7 N U * 8 J MA DII M ( 9 K A DD FO O €116 ce-16 W F10 Show my other submissions P zoom X ep L ISOI by mi 04 M vauies or roe puffer 912 deleteW 10. A 1.45-kg block is pushed against a vertical wall by means of a spring (k = 850 N/m). The coefficient of static friction between the block and the wall is 0.56. What is the minimum compression in the spring to prevent the block from slipping down? 3 E D 4 22 R F % 5 cm T G 6 tv MacBook Air Y Ⓒ H & 7 U www * 8 ci16.06.co J Dil ( 9 K O O 4 P vauies or ne puffer + { ISUIT by m 04 M (An object is attached to the lower end of a 100-coil spring that is hanging from the ceiling. The spring stretches by 0.180 m. The spring is then cut into two identical springs of 50 coils each. As the drawing shows, each spring is attached between the ceiling and the object. By how much does each spring stretch?
- Babe Ruth hits a baseball 1 meter above the ground at a 20 degree angle above the horizon. He hits almost consistently between each game. If Babe Ruth wanted the ball to stay in the air longer, what should he change? Hit the ball closer to the ground. Hit the ball with a lower force. Stand closer to the batter, keep everything else the same. Hit the ball at a larger angle above the horizon.28. A 3.2-kg hlock is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of this spring- block system is 1.8 J. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 5.0-kg block?1. One end of a helical spring is fixed and the other end is subjected to five different tensile forces. The lengths of the spring measured at various values of the tensile forces are given below: Tensile force F (N) 100 250 330 480 570 Total length of the spring (mm) 150 163 183 194 214 226 Determine the force-deflection relation of the helical spring and create the graph.
- A 75 kg athlete climbs a rope (Y=5.10^9 Pa) with diameter d=2cm. a. what is the tension in the rope while climbing up b. How much will the rope stretch when the athlete is l0=10m from the bottom? c. What effectively is the spring constant for this rope?SHMQ16. A box with a mass of 19.5 kg is placed against a compressed spring at the bottom of a ramp that tilts up from horizontal at an angle of 35.0°. (The box is on the ramp, but at the very bottom of the ramp.) The spring's force constant is 3250 N/m and the spring is compressed by 0.225 m at the start, when the box is at the bottom of the ramp. The coefficients of kinetic and static friction are 0.185 and 0.625, respectively. How far up the ramp will the box travel before it stops, measured from its starting point at the bottom of the ramp?