Recap - Crash Test

Part of the Mechanics section of Coddy's Physics journey. Lesson 96 of 97.

Challenge

In a crash test a $1400\ \mathrm{kg}$ car moving at $10\ \mathrm{m/s}$ hits a $600\ \mathrm{kg}$ cart standing still, they lock together, and the wreck skids on flat ground with $\mu_k = 0.25$ until it stops. Find the skid distance $d$ .

Try it yourself

Physics diagram: cart; arrows v 1 = 10 m/s

Solve for $d$

All lessons in Mechanics

1Introduction

What is Physics?Your First Equation Turning a Rule Around

4Inclined Planes

Forces on an Incline Gravity Components Frictionless Incline Incline with Friction Will It Slide?Recap - Ramp Challenge

7Projectile Motion

Independent Axes Horizontal Launch Launch at an Angle Range and Max Height Recap - Hit the Target

10Work and Energy

Work Kinetic Energy Work-Energy Theorem Gravitational PE Conservation of Energy Power Recap - Roller Coaster

13Impulse and Momentum

Momentum Impulse Conservation of Momentum Elastic Collisions Inelastic Collisions Recap - Air Track

16Simple Harmonic Motion

What is SHM?Mass on a Spring The Pendulum SHM Graphs Energy in SHM Recap - Oscillator

3Friction

What is Friction?Static Friction Kinetic Friction Friction and Newton's Laws Recap - Sliding Crate

6Vertical Motion

Free Fall Throwing Upward Time in the Air Recap - Dropped Ball

9Project: Delivery Drone

Mission Briefing Takeoff Thrust Climb to Altitude Cruise and Brake Package Drop

12Elastic Energy

Elastic Potential Energy Spring Launchers Energy with Springs Recap - Spring Launcher

15Circular Motion

Uniform Circular Motion Centripetal Acceleration Horizontal Circles Vertical Circles Loop the Loop Recap - Car on a Curve

18Final Challenges

Recap - Stunt RampRecap - Crash TestRecap - Space Probe