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4 cards from this section. Quick, good the night before a test.
What is friction?
Think about what happens when two materials rub against each other.
Define tension in terms of a rope.
Consider what happens when you pull a rope tight.
What opposes the motion of an object?
It's what slows things down when they’re sliding.
True or False: Tension decreases with increasing length of a rope.
Think about how tension is transferred along the rope.
A block of mass 5 kg is resting on a horizontal surface. Calculate the normal force acting on the block. If the surface has a friction coefficient of 0.3, what is the maximum static friction force?
Use the weight of the block to find normal force first.
If an object is being pulled with a force of 100 N and opposes with friction of 60 N, what is the acceleration of the object with mass 10 kg?
Determine net force first then apply Newton's second law!
6 more questions in this section. Enroll free to practise them all.
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