Find out the mechanical advantage

Reference no: EM1345351

Q. A farmer raises a bucket of water weighing 20 kg from the bottom of a well. To do this he has the rope wound around a .25 m diameter wooden drum. The handle of the crank on the drum is .4 m from the center of rotation. Find the mechanical advantage. and the required force on the handle.

Q. a) An electron is moving east in a uniform electric field of 1.50 N/c directed to the west. At point A, the velocity of the electron is 4.50 X l05 m/s toward the east. What is the speed of the electron when it reaches point B, 0.375 m east of point A?
(b) A proton is moving in the uniform electric field of part (a). At point A, the velocity of the proton is 1.90 X 104 m/s, east. What is the speed of the proton at point B?

Reference no: EM1345351

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