For the lever shown in the figure below find the effort that can lift the load. (Use: g = 9.8 m/s) %3D Effort 120 kg 15 cm 60 cm (Instruction: Type your answer without any unit. Type only the number)
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- What is the formula to calculate the mechanical advantage of a lever?The work W required to lift an object varies jointly with the object’s mass m and theheight h that the object is lifted. Write an equation which utilizes the constant of proportionality, k, to represent thegiven situation. This equation will contain four variables. Suppose the work required to lift a 110-kilogram object 1.5 meters is 2120 joules.Use this information along with the result from part a) to find the constant ofproportionality,k. Write a working equation which looks like part a) but includes the constant ofproportionality you found in part b). Use the result from part c) to determine the amount of work required to life a 150-kilogram object 1.2 meters.An object has a kinetic energy of 89.96 J and a mass of 59.76 kg, how fast is the object moving? No unit is required for the final answer. Round your answer to 4 decimal places.
- What is the work done by a tugboat that exerts a force of 12,500 N to transport a load for one kilometer? Express your result in scientific notation, in J and hp. How fast did the tug have to go down to complete its mission?A spring needs a force of 4 N to compress it 48 cm. How much work is required to stretch the spring 29 cm? ROUND OFF ANSWER UP TO 2 DECIMAL PLACES. INPUT BOTH THE NUMBER AND THE UNIT (ABBREVIATION OF UNIT ONLY).A worker uses a pulley system to raise a 225 N carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0 m. What is the AMA of the system?
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