Subjects

Sections | |||
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Intro to 2D Motion | 32 mins | 0 completed | Learn |

Projectile Motion | 67 mins | 0 completed | Learn |

More Projectile Motion | 42 mins | 0 completed | Learn |

Initial Velocity in Projectile Motion | 20 mins | 0 completed | Learn |

Circular Motion | 27 mins | 0 completed | Learn |

Additional Practice |
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Motion in 2D |

Motion in 2D & 3D With Calc |

Projectile Motion: Horizontal & Negative Launch |

Projectile Motion: Positive Launch |

Projectile Motion: Launch From Moving Vehicle |

Relative Motion |

Solution: A motorboat whose speed in still water is 4.10 m/s must aim upstream at an angle of 18.6 o (with respect to a line perpendicular to the shore) in order to travel directly across the stream.
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A motorboat whose speed in still water is 4.10 m/s must aim upstream at an angle of 18.6 ^{o} (with respect to a line perpendicular to the shore) in order to travel directly across the stream.

What is the speed of the current?

What is the resultant speed of the boat with respect to the shore? (as shown in the figure.)

A river lies in the east - west direction. The cur...

A river runs downhill with speed v R. A boat cross...

In a World Cup soccer match, Juan is running due n...

Two soccer players, Mia and Alice, are running as ...

Towns A and B in Figure P4.64 are 80.0 km apart. A...

A person in the passenger basket of a hot-air ball...

Two cars approach a street corner at right angles ...

Zack is driving past his house in
. He wants t...

In
, Yvette and Zack are driving down the free...

Susan, driving north at 56 mph , and Shawn, drivin...

An airplane pilot wishes to fly due west. A wind o...

An airplane is heading due south at a speed of 560...

An airplane, whose air speed is 560 km/h , is supp...

An airplane pilot sets a compass course due west a...

The pilot of an airplane notes that the compass in...

An airplane maintains a speed of 630 km/h relative...

Canada geese migrate essentially along a north-sou...

A jet airliner moving initially at 300 mi/h to the...

A flock of ducks is trying to migrate south for th...

In an air race, an airplane flies from a point dir...

The nose of an ultralight plane is pointed south, ...

Huck Finn walks at a speed of 0.70 m/s across his ...

A river flows due south with a speed of 2.0 m/s. A...

A child, who is 45 m from the bank of a river, is ...

A boat’s speed in still water is 1.80 m/s .
The bo...

A passenger on a boat moving at 1.70 m/s on a stil...

A swimmer is capable of swimming 0.75 m/s in stil...

A swimmer is capable of swimming 0.80 m/s in stil...

A kayaker needs to paddle north across a 100-m-wid...

A motorboat whose speed in still water is 4.10 m/s...

The speed of a boat in still water is v. The boat ...

A child in danger of drowning in a river is being ...

A boat can travel 2.30 m/s in still water.If the ...

A boat is traveling where there is a current of 0....

A river flows due south with a speed of
2.1 m...

You are a member of a geological team in
Central A...

Two rowers, who can row at the same speed in still...

A 400.0-m-wide river flows from west to east at 30...

A canoe has a velocity of 0.43 m/s southeast rela...

A river lies in the east - west direction. The cur...

Ships A and B leave port together. For the next tw...

Lisa in her Lamborghini accelerates at the rate of...

While driving north at 25 m/s during a rainstorm y...

An airplane is heading due south at a speed of 580...

A light plane is headed due south with a speed rel...

A boat, whose speed in still water is 2.70 m/s, mu...

Mary needs to row her boat across a 160 m-wide riv...

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