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a7med2009
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A block of mass 4.0kg rests on a horizontal surface. What horizontal force is required to accelerate the block at 5.0m/s2 if the coefficient of kinetic friction is 0.25?
"Horizontal force" refers to the amount of force applied to an object in a horizontal direction. This force can cause the object to accelerate or move in a horizontal direction.
Horizontal force is applied in a direction parallel to the ground, while vertical force is applied in a direction perpendicular to the ground. In other words, horizontal force causes an object to move left or right, while vertical force causes it to move up or down.
According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the net force applied to it. This means that in order to accelerate an object horizontally, a certain amount of horizontal force must be applied.
The amount of horizontal force required to accelerate an object depends on its mass and the desired acceleration. The greater the mass of the object, the more force is needed to accelerate it at a given rate. Similarly, the greater the desired acceleration, the more force is required to achieve it.
Horizontal force is typically measured in units of newtons (N). One newton is equal to the amount of force required to accelerate a mass of one kilogram at a rate of one meter per second squared.