Time
Acceleration = change is velocity/change in time
By conservation of momentum,
(900 kg) (15.0 m/s) i + (750 kg) (20.0 m/s) j = (900 kg + 750 kg) v
where v is the velocity vector of the combined cars. Solve for v :
(13,500 i + 15,000 j) kg•m/s = (1650 kg) v
v ≈ (8.18 i + 9.09 j) m/s
Then the direction of v relative to East is θ such that
tan(θ) ≈ 9.09/8.18 ⇒ θ ≈ 48.0°
so the wreckages would move at approximately 48.0° north of east.
The answer is B. <span>. People meet and fall in love. </span>
Courtship stage of the family life cycle happens before the couple entered the marriage stage.
During this stage, couples will made various effort to attract each other (flirting or giving gifts) and may convince themselves that they're finally found the 'right one'
one year as a full-time student........ hope this helps you
