Answer:
- Yes, vector u and vector v are equivalent vectors.
Step-by-step explanation:
The value of a vector is the difference between its terminal point and its initial point:
u = P2 -P1 = (6-8, 5-3) = (-2, 2)
v = P4 -P3 = (9-11, 10-8) = (-2, 2)
Vectors u and v are both (-2, 2), so are equivalent vectors.
First you do the parenthesis
then you do the exponent in the parenthesis
Then the multiplication in the parenthesis
then when you are done multiplying in the parenthesis
then u multiply the answer in the parenthesis with 1/3
and then you are done
4x was subtracted from both sides. Then, -8 was divided from both sides. Lastly, 1/2x was placed in front of -2.
Answer:
7.5s
1.6666 repeating or 1.67 m/s²
Step-by-step explanation:
the equation you have to use is Vfinal=Vstart+acceleration•time
(I'm gonna simplify to Vf=Vs+at)
so you gotta rework it for the two equations
for the first equation you need time so take Vf=Vs+at and subtract Vs on both sides to get Vf–Vs=at
then divide acceleration on both sides to get t=(Vf–Vs)/a
for the second problem equation need the equation a=(Vf–Vs)/t (just divide time on both sides instead of acceleration)
so you the plug in
(I don't put the units in to the problem unless needed)
1. t=(Vf–Vs)/a to t=(0–30)/-4.0
t= -30/-4.0
t=7.5 seconds
2. a=(Vf–Vs)/t to a=(10–0)/6.0
a= 10/6.0
a= 1.67m/s²
(I'm assuming the that for number two they started at rest so it would be 0m/s for velocity start)
Answer:
it's between BCF/DCA and BCF/BCA
