1. a)Calculate the spring constant k from the following force deformation graph b) Calculate the energy...

  

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1. a)Calculate the spring constant "k" from the following force deformation graph b) Calculate the energy stored in the spring in the first 8 cm 25 20 15 F (N) -10 5 0 1 2 3 4 5 6 7 8 9 10 x (cm) 2. How much would a vertical spring (k = 100N/m) stretch if a mass of 10 kg was hung on the end of it? 3. What is the final angular speed of a wheel starting from rest and accelerating at 4 rad/s for 8 seconds? 4. A 6.0 kg monkey swings from one branch to one that is 1.2 m lower. How much has the gravitational potential energy changed? State whether it is a loss or gain. 5. How long would it take a 50 kg student to run up a flight of stairs to a vertical height of 4.5 m if she can generate 530 W of stair climbing power? 1. a)Calculate the spring constant "k" from the following force deformation graph b) Calculate the energy stored in the spring in the first 8 cm 25 20 15 F (N) -10 5 0 1 2 3 4 5 6 7 8 9 10 x (cm) 2. How much would a vertical spring (k = 100N/m) stretch if a mass of 10 kg was hung on the end of it? 3. What is the final angular speed of a wheel starting from rest and accelerating at 4 rad/s for 8 seconds? 4. A 6.0 kg monkey swings from one branch to one that is 1.2 m lower. How much has the gravitational potential energy changed? State whether it is a loss or gain. 5. How long would it take a 50 kg student to run up a flight of stairs to a vertical height of 4.5 m if she can generate 530 W of stair climbing power?