All Vocab
a physical quantity that has magnitude but no direction
what is scalar?
_____ indicates direction; _____ does not
what is vector and scalar?
(length of hypotenuse)^2= (length of one leg)^2 + (length of other leg) ^2
what is the phythagorean theorem for right triangles?
simplifies projectile motion
velocity measurements differ in different _______
what is frames of reference?
physical quantity with both magnitude and direction
what is vector?
in our textbook, vectors are represented by
what is boldface symbols?
a simple method of finding magnitude and direction of a resultant
what is the use of tangent function and Pythagorean theorem?
objects that are thrown into the air
what is projectiles?
vac=vab+vbc
what is a general form of the relative velocity equation?
the projections of a vector along the axes of a coordinate system
what is components of a vector?
a ________ represents the sum of two or more vectors
what is a resultant vector?
tangent of angle= opposite leg/adjacent leg
what is the definition of the tangent function for right triangles?
vx=vxi= constant
what is horizontal motion of a projectile?
obsevers using different frames of reference may measure different _____ or _____ for an object in motion
what is displacements or velocities?
the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
what is projectile motion?
multiplying or dividing vectors by scalars results in
what is vectors?
sine of an angle= opposite/ hypotenuse
what is the definition of the sine function for right triangles?
vx=vxi=vicos theta = constant
what is projectiles launched at an angle?
proper way to solve an equation
what is define, plan, calculate, and evaluate?
a vector that represents the sum of two or more vectors
what is a resultant?
the amount of fluid required for a flight
what is scalar?
cosine of an angle= adjacent/ hypotenuse
what is definition of the cosine function for right triangles?
Kobe shooting a basketball
what is an example of a projectile motion?
a boat heading north crosses a wide river with a velocity of 10.00 km/h relative to the water. the river has a uniform velocity of 5.00 km/h due east. determine the boat's velocity with respect to an observer on shore.
what is a speed of 11.18 km/h in the direction 26.6 degrees northeast with respect to Earth?