Subjects

Sections | |||
---|---|---|---|

Intro to Energy | 15 mins | 0 completed | Learn |

Intro to Calculating Work | 36 mins | 0 completed | Learn |

Work By Gravity & Inclined Planes | 40 mins | 0 completed | Learn |

Work By Variable Forces (Springs) | 47 mins | 0 completed | Learn |

Net Work & Kinetic Energy | 39 mins | 0 completed | Learn |

More Work-Energy Problems | 39 mins | 0 completed | Learn |

Power | 20 mins | 0 completed | Learn |

Solution: At an accident scene on a level road, investigators measure a cars skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.36.Use these data to determine t

At an accident scene on a level road, investigators measure a cars skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.36.

Use these data to determine the speed of the car when the driver slammed on (and locked) the brakes.

Why does the cars mass not matter?

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Use the work-energy theorem to solve each of these...

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350 kg
weight and th...

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12.10 kg
moves in a stra...

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is attac...

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A
45 g
rock is placed in a slingshot and t...

You are asked to design spring bumpers for the wal...

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...

Chris jumps off a bridge with a bungee cord (a hea...

A 6.0-kg box moving at 5.0 m/s on a horizontal, f...

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A car is stopped in a distance exttip{D}{D} by a ...

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A train is moving along a track with constant spee...

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On an essentially frictionless, horizontal ice rin...

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65 kg
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slides
1.6...

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A block of mass m = 2.50 kg is pushed a distance d...

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The figure shows the kinetic-energy graph for a 2....

A 400 g particle moving along the x-axis experienc...

A box with mass 5.00 kg is pulled up a 36.9° incli...

A 2.30-kg textbook is forced against a horizontal ...

A horizontal spring with spring constant 270 N/m i...

A 10 kg object slides down an incline of 30 o. If ...

Particle A has half the mass and eight times the k...

If the human body could convert a candy bar direct...

Use the work–energy theorem to solve each of these...

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Review. You can think of the work–kinetic energy t...

A 40.0-kg box initially at rest is pushed 5.00 m a...

Review. A 7.80-g bullet moving at 575 m/s strikes ...

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