I am 11 year old and u just needed to login in so I can't answer ur questions
Answer:
(c) 16 m/s²
Explanation:
The position is
.
The velocity is the first time-derivative of <em>r(t).</em>
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The acceleration is the first time-derivative of the velocity.

Since <em>a(t)</em> does not have the variable <em>t</em>, it is constant. Hence, at any time,

Its magnitude is 16 m/s².
Answer:
you can't go ice skating on it because if it just reached the temp then you need to wait for about 2 hours
Explanation:
Answer:
the angle of incident is 40°
Explanation:
NQ is the normal to the mirror, therefore
angle NQA =90°
PQA = 50°
incident angle = NQA - PQA
90°- 50° = 40°
note that the angle of reflection is equal to the angle of incident
When people aboard a plane...the amount of baggage you take has to vary because the plane has a certain carrying capacity.