# Solving Physics Problem: Find Distance up Incline (Grade 11)

• RebWal
In summary, according to the student, they think they got the first way to solve the problem, but are not sure if what they did is correct. They also mention that this is a grade 11 physics problem and the first way they did it was using Fnet=ma.
RebWal
I don't know how to solve for s. The question is How far up the incline will the block slide, and I was to solve it 2 ways.

I think I got the first way, and this is what I have so far for the 2nd way.

w=e2-e1
-Ff*s=e2-e1
-Moo g Cos pheta*s=1/2v^2-gh
-.21(9.8)Cos38*s=1/2(5.75)^2-9.8[s(Sin38)]

I'm not sure how to solve for s. If anyone could help me out I'd really appreciate it.

Oh by the way, this is grade 11 physics, and the first way I did it was using Fnet=ma and substituting a into v2^2=v1^2+2as and I got s=14m -- Not positive if that is right

RebWal said:
I don't know how to solve for s. The question is How far up the incline will the block slide, and I was to solve it 2 ways.

I think I got the first way, and this is what I have so far for the 2nd way.

w=e2-e1
-Ff*s=e2-e1
-Moo g Cos pheta*s=1/2v^2-gh
-.21(9.8)Cos38*s=1/2(5.75)^2-9.8[s(Sin38)]

I'm not sure how to solve for s. If anyone could help me out I'd really appreciate it.

Oh by the way, this is grade 11 physics, and the first way I did it was using Fnet=ma and substituting a into v2^2=v1^2+2as and I got s=14m -- Not positive if that is right
Although it's great that you included your work, the question would be nice, too.

I included the question. It is: How far up the incline will the block slide? The block is 3.3kg, and the angle of incline is 38 degrees. Coefficient of friction is .21 and the speed is 5.75 m/s

You can solve the problem using the principle of the conservation of mechanical energy. The Kinethic energy in t=0 has to be equal to the potential energy it its maximum height plus the energy it lost due to friction which is ( (Coef. of fric.)(Normal)(distance travelled) ). You get its max. height using trigonometry you know that sen38 = height/distance travelled. there you go.

## 1. What is the formula for finding distance up an incline?

The formula for finding distance up an incline is d = l * sin(theta), where d is the distance, l is the length of the incline, and theta is the angle of the incline.

## 2. How do I find the length of the incline in the formula?

The length of the incline can be measured using a ruler or tape measure. If the incline is not physically present, it can also be estimated by measuring the height and angle of the incline using a protractor and trigonometric functions.

## 3. What units should be used when solving this problem?

The units used in the formula will depend on the units used to measure the length of the incline. For example, if the length is measured in meters, the distance will also be in meters.

## 4. How do I measure the angle of the incline?

The angle of the incline can be measured using a protractor. Place the protractor at the base of the incline and line it up with the incline. Read the angle where the incline meets the protractor.

## 5. Are there any other factors that need to be considered when solving this problem?

Yes, other factors such as the mass of the object being moved up the incline, the force of gravity, and the coefficient of friction may also need to be taken into account when solving the problem. These factors will affect the accuracy of the solution.

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