Need help on this incline/slope problem .

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A cart starts from rest at the top of a 15-meter hill and travels down a 36-meter slope, reaching a final velocity of 4 m/s. The discussion revolves around calculating the work done against friction, with emphasis on the need to determine the incline's angle, which is not provided. Participants suggest drawing a diagram to visualize the problem and applying the law of conservation of energy. There is a reminder that helpers should not provide complete solutions but guide the original poster in their calculations. The conversation highlights the importance of understanding forces in motion, particularly in relation to friction and acceleration.
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A cart begins from the top of a hill, originally at rest, and then travels down the slope. The hill has a height of 15 meters and a slope of 36 meters. The cart's mass is 6 kg and its final velocity becomes 4 m/s when the cart finally travels to the bottom of the slope.

Calculate the "work" that's is being done against the friction.

If anyone can provide a detailed response with appropriate steps, I would it appreciate it.
 
Last edited:
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tennis38 said:
If anyone can provide a detailed response with appropriate steps, I would it appreciate it.
No doubt you would, but it's not how this forum works. You need to post an attempt or a description of what's blocking you first. Please read the guidelines.
 
The obstacle in this problem is that there is no mention of the degree of incline.
 
tennis38 said:
The obstacle in this problem is that there is no mention of the degree of incline.

Draw a picture of the given information. There is enough information to find the angle of incline.
 
hint: use law of conservation :)
 
Last edited:
mrhoneycinnamo, please let the OP solve the problem. You are not supposed to completely solve the problem for them.
Guidelines for students and helpers said:
9. Helpers: don't provide the entire solution
 
tennis38 said:
The obstacle in this problem is that there is no mention of the degree of incline.
yes, you can calculate the degree of incline by simply drawing the diagram(assuming the hill is triangle), but that will not help you get the answer.
This is becoz(i assume that you try to find the fictional force by using the factor method and sustitude the force into w=fs to get the amount of work)
but be aware that the force u will find is the resultant force and that is not nessecery equal to fictional force,unless object is in balanced state which is not in this case as it is indicated by acceleration(from stationary to 4m/s).
 
Nathanael said:
mrhoneycinnamo, please let the OP solve the problem. You are not supposed to completely solve the problem for them.

oh!My bad!I didn't know I am not supposed to do so. thanks for your reminding.xD
 

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