1 km = 100 dam (decameters i hope)
11500 dam
Answer:
x=3, y=4. (3, 4).
Step-by-step explanation:
y=-x+7
y=x+1
-----------
-x+7=x+1
-x-x+7=1
-2x=1-7
-2x=-6
2x=6
x=6/2
x=3
y=3+1=4
Initially, Ball A of 10 kg will have velocity x, while Ball B of 30 kg has velocity -10 m/s.
After collision, Ball A will have a velocity of -30 m/s, while Ball B will have velocity 10 m/s. We assume their masses do not change.
(10 kg)(x m/s) + (30 kg)(-10 m/s) = (10 kg)(-30 m/s) + (30 kg)(10 m/s)
10x - 300 = -300 + 300
x = 30 m/s (to the right)
Answer:
C .12 <em><u> </u></em><em><u>units </u></em><em><u> </u></em><em><u>I </u></em><em>think </em><em>so </em><em>if </em><em>wrong </em><em>I </em><em>am </em><em>sorry</em>
Quotient is the correct answer