A 2.93 kg particle has a velocity of (2.98 i hat - 3.98 j) m/s. Required:
a. Find its x and y components of momentum.
b. Find the magnitude and direction of its momentum.

a) The x and y components of the momentum are and , respectively.

b) The magnitude and direction of its momentum are approximately 14.567 kilogram-meters per second and 306.823º.

Explanation:

a) The vectorial equation of momentum is represented by the following expression:

(1)

Where:

- Vector momentum, measured in kilogram-meters per second.

- Mass of the particle, measured in kilograms.

- Vector velocity, measured in meters per second.

If we know that and , then the momentum is:

The x and y components of the momentum are and , respectively.

b) The magnitude and direction of momentum are represented by the following expressions:

(2)

(3)

Where:

- Magnitude of momentum, measured in kilogram-meters per second.

- Direction of momentum, measured in sexagesimal degrees.

If we know that and , then the magnitude and direction of momentum are, respectively:

The magnitude and direction of its momentum are approximately 14.567 kilogram-meters per second and 306.823º.

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods