Physics Test 1 Ch.'s 1-6 Flashcards
What does the length of the vector represent?
magnitude
Vector
something that has magnitude and direction
Scalar
something that only has magnitude
Acceleration due to gravity
a=9.8 m/s^2
V and a of object at its highest point that has been thrown up
Vy=o
a=-9.8 m/s^2
t up= t down if…
something that is thrown up and lands at the same hight from which it was thrown
a parallel to v
change in magnitude
a perpendicular to v
change in direction
ax, ay, and delta v for projectile motion
ax=0
ay=-9.8 m/s^2
delta v=0
relationship of initial velocity and final velocity in the x direction
they are equal to each other
how to find x component of a velocity vector
magnitude times cos of the angle
how to find y component of a velocity vector
magnitude times sin of the angle
Newton’s 1st law
an object at rest remains at rest, an object at a constant velocity in a constant direction remains that way, unless there’s an outside force(Fnet)
Equilibrium
if Fnet=0
Dynamic Equilibrium
Fnet=0 and V is constant but doesn’t equal 0
