Answer:
Assumption: the acceleration of this bus is constant while the brake was applied.
Acceleration of this bus: approximately
.
It took the bus approximately
to come to a stop.
Explanation:
Quantities:
- Displacement of the bus:
. - Initial velocity of the bus:
. - Final velocity of the bus:
because the bus has come to a stop. - Acceleration,
: unknown, but assumed to be a constant. - Time taken,
: unknown.
Consider the following SUVAT equation:
.
On the other hand, assume that the acceleration of this bus is indeed constant. Given the initial and final velocity, the time it took for the bus to stop would be inversely proportional to the acceleration of this bus. That is:
.
Therefore, replace the quantity
with the expression
in that SUVAT equation:
.
Simplify this equation:
.
Therefore,
.
In this question, the value of
,
, and
are already known:
Substitute these quantities into this equation to find the value of
:
.
(The value of acceleration
is less than zero because the velocity of the bus was getting smaller.)
Substitute
(alongside
and
) to estimate the time required for the bus to come to a stop:
.
<h2>Hey there! </h2>
<h2>The correct option is:</h2>
<h3>"Government" </h3>
<h2>Explanation:</h2>
<h3>Government is responsible for ruling an authority in a proper way, so the answer is Government. </h3>
<h2>Hope it help you </h2>
Answer:
0.49m
Explanation:
So you need to change the original equation for finding fields to find distance, and then just plug in the numbers
Which equals 0.49meters
Also it was right on Acellus :)
Hope this helps
FOUR USES OF CONCAVE MIRROR:Satellite dishes,headlights of a car, telescopes used for astronomical studies, and shaving mirrors because of there curved and reflective surface.
FIVE USES OF LENSES: Camera lens ,microscopes ,magnifying glass,eyeglasses,projector