Chapter 5: Newton's Laws of Motion
Newton's First Law Under ideal frictionless conditions, a body in motion would continue to move forever. NEWTON'S FIRST LAW: In the absence of a net external force, a body at rest remains at rest, and a body in moti
Given the resistor below, determine (a) the equivalent resistance, (b) the
total current from the power supply, (c) the current through each resistor,
(d) the voltage drop across each resistor, and (e) the power dissipated across
each resistor.
(a) Begin
Figure 1: Block of mass m on incline of angle
A box of mass m is on an inclined plane with angle . What is the
minimum coecient of static friction, s , such that the box will remain
stationary on the incline?
Remembering that Force = mass acceleration, y
Chapter 7: Work and Energy
Work Force times distance Work done is the force exerted over a distance W = F * dx W = F * s * cos theta W = F * s (dot product)
Work For a Variable Force Many forces are not constant Therefore W = Integral from a to b, o
Chapter 11: Collisions
Impulsive Forces The force that two colliding bodies exert on one another acts for only a short time, giving a brief but strong push. Such a force that acts for only a short time is called an impulsive force During the collisio
Chapter 10: Systems of Particles
Momentum Newton's laws can be expressed very neatly in terms of momentum, a vector quantity of great important in physics. The momentum of a single particle is defined as the product of the mass and the velocity of th
Chapter 8: Conservation of Energy
Potential Energy of a Conservative Force The potential energy of the spring represents the capacity of the spring to do work by virtue of its deformation When we compress a spring, we store latent work in it, which w
Chapter 6: Further Applications of Newton's Laws
Friction The friction force f exerted by the table on the block acts horizontally, parallel to the tabletop, in a direction opposite to the motion. This force, like the normal force, is a contact force
Given the resistor below, determine (a) the equivalent resistance, (b) the
total current from the power supply,(c) the voltage drop across each resistor,
(d) the current through each resistor, and (e) the power dissipated across
each resistor.
(a) Begin b