2. Newtonian Dynamics
Friction And Contact Forces — Quiz
Test your understanding of friction and contact forces with 5 practice questions.
Practice Questions
Question 1
A block of mass $m$ is resting on a horizontal surface. If a horizontal force $F$ is applied and the block does not move, what can be said about the static friction force?
Question 2
A block is sliding down an incline with an angle $\theta$. If the coefficient of kinetic friction between the block and the incline is $\mu_k$, what is the expression for the acceleration of the block down the incline?
Question 3
If the normal force acting on a block is halved, what happens to the maximum static friction force?
Question 4
A block of mass $m$ is on a rough horizontal surface. If the coefficient of static friction is $\mu_s$, what is the maximum force that can be applied horizontally without moving the block?
Question 5
A block is sliding on a horizontal surface with a coefficient of kinetic friction $\mu_k$. If the block has a mass $m$ and is moving with a velocity $v$, what is the expression for the kinetic friction force acting on the block?