Free Fall, Forces, and Newton ICP Free Fall, Forces, and Newton

4 Known Universal Forces Electromagnetism Gravity Strong Nuclear Force Weak Nuclear Force 4 Known Universal Forces

4 Types of Friction: Static Sliding Rolling Fluid Friction

Objects with different masses fall at ________________ _______ rates. Free Fall

Terminal Velocity

A box sliding along a counter Free Body Diagrams

Newton’s 1st Law of Motion Objects in motion/rest will stay in motion/rest until acted upon by an outside force

How does this explain the necessity for seatbelts? Newton’s 1st Law

Newton’s 2nd Law F = ma W = mg F = net force (N) (N) = (kg)(m/s2) m = mass (kg) a = acceleration (m/s2) Newton’s 2nd Law

A boy pushes forward a cart of groceries with a total mass of 40. 0kg A boy pushes forward a cart of groceries with a total mass of 40.0kg. What is the acceleration of the cart if the net force is 60.0N forward? Newton’s 2nd Law

An automobile with a mass of 1200kg accelerates at a rate of 3 An automobile with a mass of 1200kg accelerates at a rate of 3.0m/s2 in the forward direction. What is the net force acting upon this car in the absence of friction? Newton’s 2nd Law

An astronaut with a mass of 95kg is standing on Earth An astronaut with a mass of 95kg is standing on Earth. What is his weight? Newton’s 2nd Law

An astronaut with a mass of 95kg is standing on Mars An astronaut with a mass of 95kg is standing on Mars. Acceleration due to gravity on Mars is 3.7m/s2. A.) What is the astronaut’s weight on Mars? B.) What is the astronaut’s mass on Mars? Newton’s 2nd Law