- #1
mickjagger
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Applying Newton's 2nd law?!
A 2.91 kg block starts from rest at the top of a 32◦ incline and slides 1.98 m down the incline in 1.28 s.
The acceleration of gravity is 9.8 m/s2
What is the acceleration of the block?
Answer in units of m/s2
What is the coefficient of kinetic friction be-
tween the block and the incline?
What is the frictional force acting on the
block?
Answer in units of N.
What is the speed of the block after it slid the
1.98 m? answer in m/s
Newtons 2nd's Law
max=[tex]\sum[/tex]fx=mgsin[tex]\Theta[/tex]
0=[tex]\sum[/tex] Fy=-mgcos[tex]\Theta[/tex]+n
I have no idea how to approach this problem.
Homework Statement
A 2.91 kg block starts from rest at the top of a 32◦ incline and slides 1.98 m down the incline in 1.28 s.
The acceleration of gravity is 9.8 m/s2
What is the acceleration of the block?
Answer in units of m/s2
What is the coefficient of kinetic friction be-
tween the block and the incline?
What is the frictional force acting on the
block?
Answer in units of N.
What is the speed of the block after it slid the
1.98 m? answer in m/s
Homework Equations
Newtons 2nd's Law
max=[tex]\sum[/tex]fx=mgsin[tex]\Theta[/tex]
0=[tex]\sum[/tex] Fy=-mgcos[tex]\Theta[/tex]+n
The Attempt at a Solution
I have no idea how to approach this problem.