A block is dragged at constant velocity in a straight line path across a level surface by force of 6 N.
What is the friction between the black and the surface?
a: 6 N
B: less than 6 N
C: More than 6N
d: ZERO
if it is not accelerating, the retarding force (fricion) must equal the pulling force.
Since the block is being dragged at a constant velocity, we can conclude that the net force on the block is zero. According to Newton's second law, the net force on an object is equal to the product of its mass and acceleration. Since the block is not accelerating, the net force is zero.
The force applied to the block is 6 N, so the friction force must also be equal to 6 N in the opposite direction to balance the applied force and result in a net force of zero.
Therefore, the correct answer is: a) 6 N.
To determine the friction between the block and the surface, we need to first understand the concept of constant velocity. When an object is moving with a constant velocity, it means that the forces acting on it are balanced. In this case, the force of 6 N that is being applied to the block is exactly equal to the opposing force of friction.
Friction is the force that opposes the motion of an object when it is in contact with a surface. It is directly related to the force applied to the object. In this scenario, the force of 6 N is specifically mentioned as the force acting on the block to keep it moving at a constant velocity.
Therefore, the correct answer is D: ZERO. The friction between the block and the surface is zero because it is precisely balanced by the applied force of 6 N, resulting in no net force and constant velocity of the block.