2. Newton's Law, Work, and Energy: (a) The work done by the applied force, (b) The work done by friction, (c) The total work done. #physics

3. Work, and Energy: A block moves up and then down along a rough inclined plane. If it returns to its starting point, the work done by gravity is zero, whereas the work done by friction is negative. #Physics

Conservation of Mechanical Energy & motion in two dimensions: The diagram shows an object with mass m located at a height of H m from the ground. The object moves from its initial position to point C. Calculate the maximum distance x. Ignore friction and air resistance #Physics

Conservation of ME & Motion in 2D: The diagram shows an object A with mass m located at a height of H m from the ground. A starts from rest and moves from its initial position to point C. Calculate the maximum distance x. #Physics

1) Potential Energy and Work–Kinetic Energy: The figure below shows the potential energy function for a particle moving in one-dimensional motion. a) Rank the regions AB, BC, and CD according to the magnitude of the force on the particle, from greatest to least. #PhysEd #Physics

2) Potential Energy & Work–Kinetic Energy: The figure below shows the potential energy function for a particle moving in one-dimensional motion. b) In the region AB, the particle is: (I) Speeding up, (II) Slowing down, (III) Moving at constant speed, (IV) At rest #PhysEd #Physics

Collision: In this inelastic collision, a significant amount of the energy was used to permanently deform the cars that collided. #physics #PhysEd

Impulse-Momentum Theorem: Consider the following graph of velocity against time for an object moving slowly. Draw a graph of the force on the object against time. #CriticalThinking #PhysEd #physics

1) Work-energy principle: A 2.0-kg block starts with a speed of 10 m/s at the bottom of a plane inclined at 37° to the horizontal. The coefficient of sliding friction between the block and plane is µk = 0.30.

2) Work-energy principle: (a) Use the work-energy principle to determine how far the block slides along the plane before momentarily coming to rest. (b) After stopping, the block slides back down the plane. What is its speed when it reaches the bottom?

Rotation of a rigid body around a fixed axis: The end of a rod that pivots freely relative to its other extremity falls faster than an object in free fall (Physics 1: Mécanique Pearson) #Physics #HigherEducation

1) Conservation of Energy: A block slides down an incline. As it moves from point A to point B, which are 5.0 m apart, force F acts on the block, with magnitude 2.0 N and directed down the incline. The magnitude of the frictional force acting on the block is 10 N. #Physics

2) Conservation of Energy: A block slides down an incline. As it moves from point A to point B, which are 5.0 m .....If the kinetic energy of the block increases by 35 J from A to B, what is the change in gravitational potential energy as the block moves from A to B? #Physics

NewtonFirstLaw; When a train starts moving, you feel pushed backward—that's inertia in action: your body resists the sudden change in motion. #Physics #Inertia #NewtonFirstLaw

When a car suddenly stops, why do the passengers move forward? A) The engine pushes them forward B) There is a force pulling them ahead C) Inertia makes their bodies keep moving forward D) The seats push them forward. Ans (C) #physics

Newton’s 1st Law: 1) An object at rest stays at rest unless winds acts upon it. 2) Things keep going until something stops them like deadlines #Physics

Newton’s Second Law:The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. You get out what you push in (unless friction steals it).

Newton’s Second Law: 🌍 Why astronauts float in space? Not because Newton’s 2nd Law is broken, but because the forces are balanced — acceleration = zero. #Physics

Newton’s Second Law: 🍕 You + heavy grocery cart = slow acceleration. You + empty cart = zoom. Newton’s 2nd Law in the supermarket aisle. 🛒 #Physics #highereducation #activelearning

oPhysics: Interactive Physics Simulations; ophysics.com/k5.html #Physics #highereducation #activelearning