# Homework Help: Kinematics: motion on a slope

1. Jan 25, 2017

### denzel

1. The problem statement, all variables and given/known data
You are sliding downhill a slope of 10% (what angle is that?). Calculate how the starting velocity of 10 km/h changes within the first 120 s. After that you try to climb up an icy hill with 5% slope. Is that possible?

2. Relevant equations
Vf = Vi +At

3. The attempt at a solution
I tried to put acceleration as -9.81 and using the kinematic formula Vf = Vi +At but the result was way too big. Should I take those 5.71 degrees and do something with them?

2. Jan 25, 2017

### Arman777

Like %100 slope is 90 degree %0 slope is 0 degree so %10 is ??

Try to calculate the acceleration that you ll gain in inclined plane

3. Jan 25, 2017

### denzel

How should I do this I if Ii don't have the mass?

4. Jan 25, 2017

### Arman777

You dont need mass If you write down the equations you'll see

5. Jan 25, 2017

### Arman777

Try To write down the total force acting on the object.Then you fill find a

6. Jan 25, 2017

### denzel

Well I really don't know wich eccuations are you talking about.

7. Jan 25, 2017

### Arman777

Do you know Newton's Law and their applications ?

8. Jan 25, 2017