Zero Net Force: Equilibrium in One and Two Dimensions (HSC SSCE Physics): Quizzes
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Practise the questions
10 questions from this quiz
What is the net force on an object in equilibrium?
What is the net force on an object in equilibrium?
Zero
Can an object moving at constant velocity be in equilibrium?
Can an object moving at constant velocity be in equilibrium?
Yes, if acceleration is zero
A cup rests on a table. Which forces act on the cup?
A cup rests on a table. Which forces act on the cup?
Normal force and gravitational force
Why aren't the forces on a stationary cup Newton's third law pairs?
Why aren't the forces on a stationary cup Newton's third law pairs?
Both act on same object
What happens to normal force when you push down on a cup on a table?
What happens to normal force when you push down on a cup on a table?
It increases to maintain equilibrium
For 2D equilibrium, what must be true?
For 2D equilibrium, what must be true?
Both and components sum to zero
What is the horizontal component of force at angle ?
What is the horizontal component of force at angle ?
A car moves at constant velocity. What balances air resistance?
A car moves at constant velocity. What balances air resistance?
Friction force from road
A 240 N force at 60° drags a rock at constant speed. What is the friction force?
A 240 N force at 60° drags a rock at constant speed. What is the friction force?
120 N
What is static equilibrium?
What is static equilibrium?
Net force is zero and object at rest