Famer attaches 25kg bale of hay to one end of rope passing over a frictionless pulley connected to beam in hay barn. Another farmer pulls down on opposite end of rope with force of 277 N. Ignoring mass of rope, what will be the magnitude and direction
f=ma
1.3 m/s^2 upward
i think i had this exact question on a test 3 of weeks ago
Created on October 5, 2009 using FlipShare.
playing in the mud with some expensive equipment.i got the baler stuck real bad took a snatchblock to pull me out.this is not how i usually make ...
Did he say buck naked and blowing? No, it was one way to harvest the hay and store it in the barn for the cattle during the winter. Bringing in the hay was nothing but sweat equity. A large number of the farms around our place were beginning to purchase balers and elevators to put the hay into the barn, Dad used the old ‘buck rake’ and blower method. For those who are unfamiliar with a buck rake, I’ll try to describe one here.
Although most buck rakes were hand-made on the farm, some could be purchased as well. Dad made his out of an old car or truck chassis and basically it consisted of the wheels, frame, motor, dashboard, seat and steering wheel. On the back he built a pickup cage, something like a fork lift, only with 8 or 10 forks made out of 4″ X 4″ X 12′ long pieces of wood, shaved to a point on the front end. The forks were attached to a metal cross-piece and that in turn was attached to the car chassis with 2 large hinges, so it could be lifted off the ground after it was filled with hay. There was a back stop to contain the hay, and a couple of side rails as well. There was a power winch to pull the rake up off the ground. The winch was hand-made, by my Dad, out of another old rear end from another vehicle. It had a drum mounted on one axle to wind up the cable, and a brake on the other axle. When the brake was applied to one axle, the other drum would turn and pull up the cable, which in turn through a pulley system, pulled the hay-fork off the ground for the ride up to the barn. I’m getting a little ahead of myself, as the hay had to be cut a few days before to allow it to dry in the sun.  Most places had a hay mower powered by the power take off on the tractor, so only 1 person was needed to cut the hay. We used an old pull mower that was powered by the wheels on it, so we needed 2 people to cut hay, one on the tractor and one on the mower. As I said before, the hay had to dry out before you put it into the barn, or if it were damp, it could burst into flame in the barn with disastrous results.
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Rusty pulley on an old barn near the ghost town area of Castalia, FL. The town show up on 1800 maps but is now just listed as a community. The school house is a part of Cracker Country in the Florida State Fair
Old Barn in the ghost town of Castalia. The town show up on 1800 maps but is now just listed as a community. The school house is a part of Cracker Country in the Florida State Fair
Old Barn loft door near the ghost town of Castalia, FL . The town show up on 1800 maps but is now just listed as a community. The school house is a part of Cracker Country in the Florida State Fair
Old Barn near the ghost town area of Castalia, FL. The town show up on 1800 maps but is now just listed as a community. The school house is a part of Cracker Country in the Florida State Fair
Rear of 1907 Van Norden Carriage House shows doors to hay loft and pulley for raising bales. The architect for the this building, Frank Rooke, also built Claremont Stables in Manhattan.