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: A 5 kg mass is pushed across a floor with a coefficient of kinetic friction of 0.35. If the force pushing the mass is 70 N, how much work is done after 5 s by:(a) the pushing force(b) friction after(c) the normal force(d) gravity

A 5 kg mass is pushed across a floor with a coefficient of kinetic friction of 0.35. If the force pushing the mass is 70 N, how much work is done after 5 s by:

(a) the pushing force

(b) friction after

(c) the normal force

(d) gravity

A 50 g mass is lifted upwards 20 cm. How much work...

A 360-kg piano slides 3.6 m down a 26 incline an...

A grocery cart with mass of 14 kg is being pushed...

A physics professor is pushed up a ramp inclined u...

You need to raise a heavy block by pulling it with...

A 20.0-kg crate sits at rest at the bottom of a 15...

An
14.0-kg
package in a mail-sorting room s...

A
7.00-kg
package slides
2.80 m
do...

A boxed 13.0 kg computer monitor is dragged by fr...

How much work is done by the gravitational force w...

A hammerhead with a mass of 2.3 kg is allowed to ...

A gondola can carry 20 skiers, with a total mass o...

Determine the work a hiker must
do on a 13.1 kg b...

A 0.050-kg rock moves from the origin to the point...

The cable of a crane is lifting a
750 kg
gi...

A 75-kg roofer climbs a vertical 7.0-m ladder to t...

Eight books, each 7.5 cm thick with mass 1.6 kg ,...

What magnitude force is required to give a helicop...

A sack of flour of mass 5.50-kg is lifted vertical...

In a certain library the first shelf is 15.5 cm o...

The two ropes seen in the figure are used to lower...

A sack of flour of mass exttip{m}{m} is lifted ve...

A 66.5 kg hiker starts at an elevation of 1320 m ...

A cyclist intends to cycle up a 8.50 hill whose ...

A 76.0-kg firefighter climbs a flight of stairs 21...

A 5 kg mass is pushed across a floor with a coeffi...

An object released from rest at the top of a 30.0°...

A box is pulled by a force F up a ramp that is inc...

A block of mass 10.0 kg slides 16.0 m down a 36.9°...

A block of mass 10.0 kg slides 16.0 m down a 36.9°...

A 1.75 m tall person lifts a 1.65 kg book off the ...

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

A ramp is inclined at 36.9° above the horizontal. ...

A block with mass 5.0 kg slides a distance of 6.0 ...

When an object is moved from rest at point A to re...

What is the minimum work needed to push a 950-kg c...

A 125.2 N carton is pulled up a frictionless bagga...

A boy in a wheelchair (total mass 47.0 kg) has spe...

A luggage handler pulls a 19.0-kg suitcase up a ra...

A 1.6 kg book is lying on a 0.76-m-high table. You...

Spiderman, whose mass is 80.0 kg, is dangling on t...

A 76.0-kg painter climbs a ladder that is 2.75 m l...

In 1990, Walter Arfeuille of Belgium lifted a 281....

The record number of boat lifts, including the boa...

Enter your friends' email addresses to invite them:

We invited your friends!

Join **thousands** of students and gain free access to **55 hours** of Physics videos that follow the topics **your textbook** covers.