Physics

Hooke's Law Forces — Hooke’s Law is a law that says the restoring force required to compress or stretch a spring is proportional to the distance the spring is deformed. The formula form of Hooke’s Law is F = -k·Δx where F is the restoring force of the spring k is the proportionality constant […]

Hooke’s Law Example Problem

This entry was posted on March 12, 2018 by Todd Helmenstine (updated on March 19, 2018)

At what temperature does both Fahrenheit and Kelvin thermometers read the same value? — What temperature are Fahrenheit and Kelvin equal to each other? This question is similar to the popular homework question “When does Celsius equal Fahrenheit?” where the two different temperature scales read the same value. This example problem not only gives you the answer, it shows step by step, how to […]

What Temperature Are Fahrenheit and Kelvin Equal?

This entry was posted on May 9, 2017 by Todd Helmenstine (updated on May 22, 2017)

Rollercoaster Diagram for Conservation of Energy Example Problem — Potential energy is energy attributed to an object by virtue of its position. When the position is changed, the total energy remains unchanged but is converted to a different type of energy, like kinetic energy. The frictionless roller coaster is a classic potential and kinetic energy example problem. The roller […]

Potential And Kinetic Energy Example Problem – Work and Energy ...

This entry was posted on April 30, 2017 by Todd Helmenstine

Inelastic Collision Example Problem Illustration After condition — A collision is considered an inelastic collision when kinetic energy is lost during the collision. This inelastic collision example problem will show how to find the final velocity of a system and the amount of energy lost from the collision. Inelastic Collision Example Problem Question: A 3000 kg truck travelling […]

Inelastic Collision Example Problem – Physics Homework Help

This entry was posted on April 20, 2017 by Todd Helmenstine (updated on April 20, 2017)

Elastic Collision Example Problem Illustration — Elastic collisions are collisions between objects where both momentum and kinetic energy are conserved. This elastic collision example problem will show how to find the final velocities of two bodies after an elastic collision. This illustration shows a generic elastic collision between two masses A and B. The variables involved […]

Elastic Collision Example Problem – Physics Example Problems

This entry was posted on April 1, 2017 by Todd Helmenstine

Elastic Collision - Conservation of Momentum Example — An elastic collision is a collision where total momentum and total kinetic energy is conserved. This illustration shows two objects A and B traveling towards each other. The mass of A is mA and the moving with velocity VAi. The second object has a mass of mB and velocity VBi. […]

Elastic Collision of Two Masses – It Can Be Shown ...

This entry was posted on March 29, 2017 by Todd Helmenstine