Ed, Edd and Eddy love to play on a seesaw. It consists of a 1-kg board with a length of 8 meters. One day, the other end broke down. They had to cut it by a meter and maintain the pin support in its original position. Then, they tried the seesaw altogether. Ed (m = 55kg) sat on one side about 3m from the pin while Edd (m = 40kg) and Eddy (m = 40kg) on the other side. If Edd was about 3m as well from the pin, calculate the following: The magnitude of the reaction force (N) exerted by the pin support on the board. Assume Eddy is in between Ed and Edd. (mass of board = 1kg)

If a 50 lb force is applied to the end of a 62 cm long wrench, how much torque does that produce? Give your answer in ft-lb. Answer to 3 significant digits.

Convert between energy units. 132x10^4 kJ to kcal

A winch mechanism with a handle length of 30 cm and a drum diameter of 8 cm isused to lift a 45 kg load.a. What is the VR of the winch?b. If 73.5 N of force is required to lift the load, what is the MA?c. What is the mechanical efficiency of the winch?d. How many turns will be required to lift the weight 0.85 meters?

7. Calculate the Gravitational Force between the Sun and Jupiter (make sure that the masses of the Sun and Jupiter are in Kg and the distance in meters)

1.10 Figure 1.24 shows a special spanner used to tighten screwed components. A torque is applied at the tommy- bar and is transmitted to the pins which engage into holes located into the end of a screwed component. (a) Using the data given in Fig. 1.24 calculate: (i) the diameter D of the shank if the shear stress is not to exceed 50 N/mm², (ii) the stress due to bending in the tommy-bar, (iii) the shear stress in the pins. (b) Why is the tommy-bar a preferred method of applying the torque? 26 26 5 [C.G.] [9.14 mm; 254.6 MN/m²; 39.8 MN/m².] Mechanics of Materials 50N force applied at a distance of 25 mm from both ends of tommy bar Q Fig. 1.24. 05 100

62.A stone weighs 460 N in air. When submerged in water, it weighs 300N. Find the volume and specific gravity of the stone.

1. What is the weight of a 12-shig boulder if it is brought to a place where the acceleration due to gravity is 30.76 ft/s²?

Tractor Tire Additional torque is required to accelerate the water filled tractor tires to 25 MPH. The tires are 6 feet in diameter and the center rim is 2 feet in diameter. The moment of inertia for the rubber tire is 15 lbs.ft.Sec². Water weighs 62.4 lbs/ft³. The rim weighs 120 lbs. A. Find Masses B. Find Omega C. Find Alpha D. Find Jm E. Find the torque to accelerate in 6 seconds

If you wanted to calculate the weight of a ballistic armor plate in lbs, with the dimensions of 10inx12inx1.125in and a density of .126 lb/in3. What is the weight?