In a strongman competition, a competitor attempts to pull a train (100,000kg) along a track. The force applied is constant at 4575N, but the connecting rope is at an angle of 10°. What is the work done on the train if the distance moved by the train is 15m along the track? What is the final velocity of the train?
Please help and show formulas used. Thank you!
Concept - here we use the equation for work done which is equal to dot product of force and displacement. Use work energy theorem to find the final velocity of the train.

***********************************************************************************************
This concludes the answers. If there is any mistake or
omission, let me know immediately and I will fix
it....
In a strongman competition, a competitor attempts to pull a train (100,000kg) along a track. The...
You pull a your friend along in a sled (combined mass is 65 kg), by pulling the rope at an upward angle of 20 degrees with respect to the ground with enough force to keep the sled moving at a constant velocity of <3,0, 0> m/s. The coefficient of kinetic friction between the ground and the sled is 0.15. (a) Draw a force diagram for the friend/sled system. (b) Once you get to constant velocity, you pull the sled 15...
A mini train is moving at a constant speed along a straight, horizontal track. The train consists of an engine, which is in front, and one car that is being towed by the engine by a cable. The engine and car are not touching. There is a coefficient of kinetic friction of between the engine and the track, and between the car and the track. The coefficient is the same for both; it is 0.100. The engine has a mass...
A train is moving along a track with constant speed v1 relative to the ground. A person on the train holds a ball of mass mm and throws it toward the front of the train with a speed v2 relative to the train. a) Calculate the change in kinetic energy of the ball in the Earth frame of reference. Express your answer in terms of the variables m, v1, and v2. b) Calculate the change in kinetic energy of the...
A train is moving along a track with constant speed v1 relative to the ground. A person on the train holds a ball of mass m and throws it toward the front of the train with a speed v2 relative to the train. Calculate the change in kinetic energy of the ball in the Earth frame of reference. Express your answer in terms of the variables m, v1, and v2. Calculate the change in kinetic energy of the ball in...
Question 22 of 22 > Track ... Rope . A cart for hauling ore out of a gold mine has a mass of 445 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.55° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 444 N force for a distance of 201 m by means...
A cart for hauling ore out of a gold mine has a mass of 429 kg , including its load. The cart runs along a straight stretch of track that climbs a shallow 4.63∘ incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 431 N force for a distance of 131 m by means of a rope that is parallel to the...
A train is travelling east along a straight run of track at 63.0 km/hr. Inside, two siblings 1.70 m apart are playing catch directly across the aisle. The kid wearing a P.J. Harvey T-shirt throws the ball horizontally north. The ball crosses the train and is caught 0.90 s later by her little brother. (Ignore any effects of gravity or friction.) Find the magnitude of the ball's velocity from the little brother's point of view. What is the magnitude of...
A rooe is tied to a box and used to pull the box
A rope is tied to a box and used to pull the box 1.9 m along a horizontal floor. The rope makes an angle of 30° with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N Part A How much work does gravity do on the box? Express your answer in Joules to one...
helpp!!!
Work Done by Different Forces (No Calculator): You try F or N Normal Force perpendicular to the surface. Q1: The block in the figure is moving upwards along a smooth inclined plane at angle 0. A force F is pushing it upwards, parallel to the incline as shown in the figure. The block moved a distance, d. (a) Draw a FBD and (b) figure out work done by forces F.F. fand N fFriction FA Applied force. Force towards the...
A block slides from rest, along a track with an elevated left
end, a flat central part, into a relaxed spring, as shown in the
figure. The curved portion of the track is frictionless, as well as
the first portion of the flat part of L = 10 cm. The coefficient of
kinetic friction between the block and the only rough part, D = 10
cm, is given by k = 0.20. Let the initial height of the block be...