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1. In the absence of any frictional forces, any object that loses 20 meters in elevation will end up with what velocity? 2. If an

1. In the absence of any frictional forces, any object that loses 20 meters in elevation will end up with what velocity?

2. If an 8 lb sledge hammer is dropped on a nail lasting 0.25 seconds, what impulse is imparted?

3. If one railroad car moving at west at 10 fps strikes two other stationary cars each with 2/3 the mass as the moving car.What is the resulting velocity of the three cars if they stick together.

4. If a 20 lb force is applied to a 4 ounce stationary object over the time of 1/10 second, what velocity will the object have.

5. On a see saw one child weighs 100 pounds and is seated 5 ft from the fulcrum. Another child that weighs 75 pounds must sit how far from the fulcrum for the see saw to be at equilibrium?

6. A 1 ounce bullet striking a 10 pound ballistic pendulum is captured causing an upward deflection of 0.75 inches. What was the muzzle velocity of the gun?

7. Two pulleys are joined together and share a common rotation point, the 4" diameter pulley has a 80 lb load on it. To be at equilibrium how much force needs to be applied to the 2 foot in diameter pulley?

8. Given a wheel with an initial angular velocity of 3.14 rad/sec, and an angular acceleration of 0.25 rad/sec^2, how long will it take the wheel to turn through an angle of 7500 degrees?

9. What is the translational acceleration of a 14 inch radius tire with an angular acceration of 2 rads/sec^2?

10. A 10 kg object starting at a height of 10 m begins to roll, after it has lost the 10 m of height the linear velocity is measured to be 2 m/sec and the rotational velocity measured to be 4 rads/sec.What is its rotational Inertia?

11. For a needed force of 150 lbs to be supplied by an extending cylinder using a pressure of 20 psi, what is the diameter of the cylinder needed?

12. If a force of 15 pounds is applied to a area of 2 in^2, that is connected directly to another cylinder with an area of 10 in^2 what force out is realized?

13. If gauge pressure is 325 psi, what is the absolute pressure?

14. You wish to drain a pool, the outlet flow fills up a 5 gallon bucket every 3 seconds when the pool is full. Estimate how long it will take the pool to drain if its 10' by 20' starting with 6' deep water in it.

15. 5 gal/min through a 2" pipe will have what flow velocity. If the pipe is increased to 4" what will happen to the flow velocity?

16. What will the gauge pressure in a tire be if at 25 C its 35 PSI (gauge), but then its run until the tire is 40 C?

17. How much will 10 feet of steel expand linearly if the temp changes by 100 C?

18. A ball thrown up at an initial velocity of 25 fps in absence of friction will be going how fast when it returns?

19. How many Cuft of mulch is required to fill a bed 3' x 20' to a depth of 4"?

20. A torque of 18 in-lbs on a fastener with a 6" wrench requires what force?

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