Answer:
112J (3 s.f.)
Explanation:
KE= 1/2mv^2
where KE is kinetic energy, m is the mass in kg, and v is the velocity (or speed to take it simply) in m/s.
KE= 1/2(6)(6.1^2)
KE= 111.63
KE= 112J (3s.f.)
Answer:
The rescue crew should fly to go directly to the field to 164.73 mi at 18.99° south of east.
Explanation:
To know the total distance, we need to use cartesian coordinates. The distance that should fly the rescue crew to the east is the decomposition of both travels on this direction, it is the same way to the travels on the another axle. So
and
when we have got result of both travels, we use the trigonometric identity know Arctan;
to find the direction. Then we need to use the pythagorean theorem to get the distance that the rescue crew should travel;
. Ordering the data we get distance 164.73 mi at 18.99° south of east.
Answer:
d. Direction and magnitude
Explanation:
The two components of a vector are its magnitude and direction.
Magnitude is the quantity of the substance
Direction is the path.
- Other quantities are called scalar quantities.
- Scalar quantities have only magnitude but no direction.
Examples of vector quantities are velocity, displacement, acceleration.