Which of the following is NOT one of the three keys to keeping water clean? Reduction of pollutants Effective cleanup of oil and
2 answers:
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Answer:
Explanation:
<u>Constant Acceleration Motion</u>
It's a type of motion in which the velocity of an object changes uniformly in time.
Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:
The car initially travels at vo=7.35 m/s and accelerates at a rate of during t=2.09 s.
The final velocity is:
Answer:
The right answer is "1.369 m/s²".
Explanation:
The given values are:
Distance (s)
= 260 m
Initial speed (u)
= 26 m/s
Reaction time (t')
= 0.51 s
During reaction time, the distance travelled by locomotive will be:
⇒
Remained distance between locomotive and car:
⇒
Now,
The final velocity to avoid collection is, V = 0 m/s
From third equation of motion:
⇒
On putting the estimated values, we get
⇒
⇒
⇒
⇒
⇒