Determine kinetic energy gained by the mass during the acceleration

AI Thread Summary
To determine the kinetic energy gained by a 50 kg mass accelerated uniformly up a 30-degree incline, the relevant equations must be identified, including those for force, distance, and energy. The acceleration is 1 m/s² over 6 seconds, requiring calculations for distance moved, potential energy gained, and final velocity. A force diagram is essential to analyze the normal and tangential forces, factoring in the coefficient of friction of 0.2. The discussion emphasizes the importance of understanding the underlying physics concepts rather than merely applying formulas. Engaging with example problems from the textbook is recommended for better comprehension.
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Homework Statement


I need help on my Mechanical system exam question.

(b) A mass of 50 kg. is to be uniformly accelerated from rest up a plane inclined at 30(deg) to the horizontal, by a force parallel to the plane. The acceleration rate is 1m/s2 for a period of 6 seconds. If the coefficient of friction between mass and plane is 0.2 (both static and kinetic),

Determine.


(ii) The distance the mass moves up the slope during the acceleration and the potential energy gained

(iii) The velocity and kinetic energy gained by the mass during the acceleration


The problem is that i never done phisics befor and i would be more than happy if you guys help me passing my exam. it's 3am now and I am still studying. thanks
 
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The Futur: The PF rules state we are not allowed to tell you how to approach or solve your homework or exam problem. You must list relevant equations yourself, and show your work; and then someone might check your math.
 
nvn said:
The Futur: The PF rules state we are not allowed to tell you how to approach or solve your homework or exam problem. You must list relevant equations yourself, and show your work; and then someone might check your math.

Yeah i do understand what you mean. there come the problem, i don't know what equation i have to use. as i said i never done phisics befor
 
If you're taking the class for the first time, you're not expected to have done "phisics" before. BTW, the word is physics. Also, there is more to these problems than picking a formula and plugging numbers into it.

Have you looked at the worked example problems in your text? To get you started, you need to draw a force diagram for the block on the plane, and determine the normal force the block applies perpendicular to the plane, and the tangential force acting parallel to the plane. The given coefficient of friction comes into play here.
 
Mark44 said:
If you're taking the class for the first time, you're not expected to have done "phisics" before. BTW, the word is physics. Also, there is more to these problems than picking a formula and plugging numbers into it.

Have you looked at the worked example problems in your text? To get you started, you need to draw a force diagram for the block on the plane, and determine the normal force the block applies perpendicular to the plane, and the tangential force acting parallel to the plane. The given coefficient of friction comes into play here.

mmmm thanks
 
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