Magnitude + direction of block on an incline

AI Thread Summary
To determine the magnitude and direction of the total force exerted on an 800 gm block sliding down a 30° incline with an acceleration of 1.5 m/s² and a coefficient of kinetic friction (uk) of 0.4, one must analyze the forces acting on the block. The gravitational force acting down the incline and the frictional force opposing the motion must be calculated. By applying Newton's second law, the net force can be derived, leading to the total force exerted by the plane. The direction of this force should be measured counterclockwise from the vertical. A systematic approach involving free-body diagrams and equations of motion will clarify the solution.
jspek9
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A 800 gm block slides down an inclined plane that makes an angle of 30° with the horizontal. It accelerates at 1.5 m/s2. uk=.4
Find the magnitude and direction of the total force exerted on the block by the plane. For the direction, give the angle as measured counterclockwise from the vertical (in degrees).

Can anyone give me any insight on how to go about this? I'm completely lost.
 
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jspek9 said:
A 800 gm block slides down an inclined plane that makes an angle of 30° with the horizontal. It accelerates at 1.5 m/s2. uk=.4
Find the magnitude and direction of the total force exerted on the block by the plane. For the direction, give the angle as measured counterclockwise from the vertical (in degrees).

Can anyone give me any insight on how to go about this? I'm completely lost.

Homework Statement



Homework Equations



The Attempt at a Solution


Draw a picture of the block. Draw and label the various forces. If it is being accelerated then there must be a net force that is the cause.

Write an equation and solve.
 
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