Question

In: Physics

You are pulling a rope that is attached to a sled that your cousin is riding...

You are pulling a rope that is attached to a sled that your cousin is riding on. The rope that you are pulling on is at an angle of 30 degrees above the surface of the snow. Your cousin is holding a second rope that is attached to a second sled that is carrying firewood. The rope that your cousin is pulling is parallel to the surface of the snow. The mass of your cousin and her sled is 45 kg. The mass of the firewood and the sled carrying the firewood is 100 kg. The kinetic friction coefficient between the sleds and the snow is 0.1. Both sleds are speeding up at 0.5 m/s 2. 1.Sketch and label all parameters 2.Draw free body diagrams needed to solve the problems. 3. Determine how much force your cousin needs to pull on the rope attached to the sled with the firewood. 4.Determine the force you are exerting on the rope.

Solutions

Expert Solution


Related Solutions

Three huskies are pulling a dog sled. The mass of the driver, sled and supplies is...
Three huskies are pulling a dog sled. The mass of the driver, sled and supplies is 145 kg. Snowy is pulling with a force of 83 N and 15.5degrees to the left of forward. Buster is pulling with a force of 75 N at 9degrees right of forward and Prince is pulling with a force of 77N at 12 degrees right of forward. The sled is moving forward at a constant velocity. What is the coefficient of kinetic friction between...
A man is pulling a 120 lb wooden box by a rope with a force of...
A man is pulling a 120 lb wooden box by a rope with a force of 80 lb along a wooden floor. The rope is 45 degrees from the horizontal. The coefficient of of dynamic friction between wood to wood surfaces is Uk=0.45. If the box initially starts from rest, what will the box's (a) acceleration,and (b) velocity after 8 sec? (c) max power and (d) average power. Make sure to have FDB and kinetic diagrams, and unit base vectors.
Two snowmobiles are both pulling with 400.0 N on a 1.00 x 102 kg sled on...
Two snowmobiles are both pulling with 400.0 N on a 1.00 x 102 kg sled on ice (no friction). One snowmobile pulls at a 20.0o angle to the left, the other pulls at 30.0o to the right of the same forward direction: y. 1.) Calculate the net force: Σ Fnet exerted on the sled. (magnitude and direction) 2.) What is the acceleration of the sled? f the sled travels 2.00 km, calculate the work (Joules) was done by the snowmobiles...
You are riding on a subway carrying a 500 g stone hanging from a short rope.1...
You are riding on a subway carrying a 500 g stone hanging from a short rope.1 Suppose that the train is in the process of decelerating from 20 m/s to a stop over 10 seconds. Instead of hanging straight down, the stone is observed to hang at an angle θ away from the vertical. Explain why this happens. Calculate/answer: (a) Draw a force diagram (free-body diagram) for the stone. Make sure you clearly label which direction is which, using labels...
You are on roller blades, holding a rope attached to a truck. Starting from rest, the...
You are on roller blades, holding a rope attached to a truck. Starting from rest, the truck pulls you. After traveling for 7.33 s, you are moving at 10.0 m/s. If the friction in your roller blades is negligible, what is the tension in the rope? Your mass is 69.0 kg. Report your answer in SI units, rounded to the nearest whole number.
A dog in a weight-pulling competition tugs a 50-kg sled a distance of 5 m across...
A dog in a weight-pulling competition tugs a 50-kg sled a distance of 5 m across a snowy track. The dog pulls horizontally with a force of 350 N. The coefficient of kinetic friction between the sled and the snow is 0.05. (Draw yourself a free-body diagram on the sled). The next four questions have to do with this scenario. Determine the work done by the dog. I got the correct work (1750J) Add up the y-components, ΣFy, and determine...
The diagram below is a top-down view of two children pulling a 11.1-kg sled along the...
The diagram below is a top-down view of two children pulling a 11.1-kg sled along the snow. The first child exerts a force of F1 = 10 N at an angle θ1 = 45° counterclockwise from the positive x direction. The second child exerts a force of F2 = 8 N at an angle θ2 = 30° clockwise from the positive x direction.
Block A rests on a horizontal tabletop. A light horizontal rope is attached to it and...
Block A rests on a horizontal tabletop. A light horizontal rope is attached to it and passes over a pulley, and block B is suspended from the free end of the rope. The light rope that connects the two blocks does not slip over the surface of the pulley (radius 0.080 m) because the pulley rotates on a frictionless axle. The horizontal surface on which block A (mass 3.30 kg) moves is frictionless. The system is released from rest, and...
As in the figure below, a simple harmonic oscillator is attached to a rope of linear...
As in the figure below, a simple harmonic oscillator is attached to a rope of linear mass density 5.4 ✕ 10−2 kg/m, creating a standing transverse wave. There is a 3.5-kg block hanging from the other end of the rope over a pulley. The oscillator has an angular frequency of 44.1 rad/s and an amplitude of 255.0 cm. (a) What is the distance between adjacent nodes? m (b) If the angular frequency of the oscillator doubles, what happens to the...
Cousin Throckmorton is playing with the clothesline. One end of the clothesline is attached to a vertical post.
 Cousin Throckmorton is playing with the clothesline. One end of the clothesline is attached to a vertical post. Throcky holds the other end loosely in his hand, so that the speed of waves on the clothesline is a relatively slow 0.740m/s. He finds several frequencies at which he can oscillate his end of the clothesline so that a light clothespin 43.0cm from the post doesn't move. What are these frequencies?  (0.860 kHz)n, n=1, 2, 3... (0.860Hz )n, n=1, 2, 3... (1.72 kHz)n, n= 1,...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT