Homework help? [ block on inclined plane ]

In summary, there are three parts to this problem involving a block on an inclined plane: finding the acceleration of the block, its speed after traveling a certain distance, and the magnitude of the perpendicular force it exerts on the plane. The first problem involves using a free body diagram and trigonometry to determine the acceleration. The second problem deals with kinematics and equations relating distance to velocity and acceleration. The third problem also involves a free body diagram and finding the force the block exerts on the plane. It is important to have a reference, such as notes or equations, to solve these problems.
  • #1
myaaxcore
9
0
Homework help?? [ block on inclined plane ]

Homework Statement



002 (part 1 of 3) 10.0 points
A 3.86 kg block slides down a smooth, fric-
tionless plane having an inclination of 28◦ .
The acceleration of gravity is 9.8 m/s2 .
Find the acceleration of the block.
Answer in units of m/s2.

003 (part 2 of 3) 10.0 points
What is the block’s speed when, starting from
rest, it has traveled a distance of 2.35 m along
the incline.
Answer in units of m/s.

004 (part 3 of 3) 10.0 points

What is the magnitude of the perpendicular
force that the block exerts on the surface of
the plane at a distance of 2.35 m down the
incline?
Answer in units of N.
 
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  • #2


We are here to help myaxx... but can't do it for you. You need to throw up some equations and say why you are stuck.
 
  • #3


i don't know what equations to use.
i just need the equations for each problem. i can get the answer myself :]
 
  • #4


OK, but if this is for a class, you should either have a chapter or notes or something to use as a reference.

The first problem is best understood by use of a free body diagram, illustrating all the forces acting on the block. In this case only a portion of the force of gravity is available to pull the block down the slope. It is related to the trig of the situation.

The second is a problem in kinematics. You should somewhere have reference to equations which relate distance to either velocity and/or acceleration.

The third part deals with the force the block exerts on the plane and again can be found by consideration of the free body diagram. Does any of this ring a bell?
 

Related to Homework help? [ block on inclined plane ]

1. What is a block on an inclined plane?

A block on an inclined plane refers to an object, usually a rectangular block, that is placed on a surface that is angled or sloped. This surface is known as an inclined plane. The block may slide or roll down the inclined plane depending on its mass and the angle of the plane.

2. How does homework help relate to a block on an inclined plane?

Homework help in the context of a block on an inclined plane would involve understanding the principles of physics and mechanics to solve problems related to the motion of the block on the plane. This may include calculating the force, acceleration, and velocity of the block, as well as understanding concepts such as friction and gravity.

3. What are some common problems involving a block on an inclined plane?

Some common problems involving a block on an inclined plane include finding the acceleration of the block as it slides down the plane, determining the coefficient of friction between the block and the plane, and calculating the force required to move or keep the block in place on the inclined plane.

4. How can homework help improve understanding of blocks on inclined planes?

Homework help can improve understanding of blocks on inclined planes by providing practice problems and solutions, clarifying key concepts and equations, and offering personalized guidance and support. This can help students develop a deeper understanding of the principles involved and improve their problem-solving skills.

5. Are there any real-world applications of understanding blocks on inclined planes?

Yes, there are many real-world applications of understanding blocks on inclined planes. Some examples include designing ramps and slopes for wheelchair accessibility, constructing roller coasters and water slides, and calculating the optimal angle for a roof to prevent snow buildup. Understanding the principles of inclined planes can also be applied in engineering, architecture, and other fields.

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