Types of Friction 01 Due in 20 hours, 36 minutes In the reading it was pointed o

Question

Types of Friction 01

Due in 20 hours, 36 minutes

In the reading it was pointed out that there are two types of friction with which we’ll concern ourselves: static and kinetic. In determining which you need to use, you need to consider whether the two surfaces are moving relative to each other or not. If the two surfaces do not slide, you want to consider static friction. If the two surfaces are slipping, you want to consider kinetic friction. Pick the type of friction you would use in each of the following situations.

static

kinetic
  A soda can is resting on the top of a car. The car is moving but the soda can is not sliding. (Consider the frictional force between the can and the roof of the car.)

static

kinetic
  A coffee mug is sliding across the table top.

static

kinetic
  A baseball player is sliding into second base.

static

kinetic
  A block is moving across a tabletop at a constant speed.

static

kinetic
  A textbook is sitting stationary on a board, which is being tilted slightly.

Explanation / Answer

Multiple sub parts allowed to solve only 3 sub parts at a time.....please raise another point for the remaining sub parts.

part 1) is static friction because object is at rest and not moving

part 2 and 3 are kinetic friction because we know that sliding is also known as kinetic friction

The force of friction is greater than the applied force. This is static friction. If you apply a little more force, the object "breaks free" and slides, although you still need to apply force to keep the object sliding. This is kinetic friction

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