Introduction to SAT II Physics

which reflects its resistance to being accelerated. The weight of an object is a measure of the gravitational force being exerte ...

normal force exerted on the box by the floor has the same magnitude as W + F but is directed upward. Therefore, the net force on ...

In the diagram above, the weight and the normal force are represented as W and N respectively, and the force applied to the box ...

magnitude of the force of kinetic friction on an object, are both proportional to the normal force acting on the object in quest ...

A student pushes a box that weighs 15 N with a force of 10 N at a 60º angle to the perpendicular. The maximum coefficient of st ...

In cases like the diagram above, it’s very easy to deal with the force of tension by treating the situation just as if there wer ...

.Each of the figures below shows a particle moving with velocity v, and with one or two forces of magnitude F acting upon it. I ...

4.. A force pushes on an object of mass 10 kg with a force of 5 N to the right. A force pushes on the same object with a force o ...

.In the figure above, a person is dragging a box attached to a string along the ground. Both the person and the box are moving ...

D According to Newton’s First Law, an object maintains a constant velocity if the net force acting on it is zero. Since the tw ...

Since the block is motionless, the net force acting on it must be zero. That means that the component of that pulls the block to ...

The force needed to move the crate is equal and opposite to the maximum force of static friction, , where is the coefficient of ...

When we are told that a person pushes on an object with a certain force, we only know how hard the person pushes: we don’t know ...

of the two vectors multiplied by the cosine of the angle between the two vectors. So the most general vector definition of work ...

EXAMPLE A water balloon of mass m is dropped from a height h. What is the work done on the balloon by gravity? How much work is ...

The work done by the force of gravity is the same if the object falls straight down or if it makes a wide parabola and lands 100 ...

The graph above plots the force exerted on a box against the displacement of the box. What is the work done by the force in movi ...

There is the kinetic and potential energy of kinematic motion, the thermal energy of heat reactions, the chemical energy of your ...

Though energy is always measured in joules, and though it can always be defined as a capacity to do work, energy manifests itsel ...

The friction between the puck and the ice decelerates the puck. The amount of work the ice does on the puck, which is the produc ...