When measurements are close to their true values, they are said to be
2 answers:
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Answer:
The options are not provided, so i will answer in a general way.
We know that:
The movement is along a straight horizontal surface, then we have one-dimensional motion.
The speed is 2m/s
We want a graph of position vs time.
Now, remember the relation:
Distance = Speed*Time
Then we can write the position as a function of time as:
P(t) = 2m/s*t + P0
Where t is our variable, that represents time in seconds, and P0 is the position at time t = 0seconds, we can assume that this is zero.
Then the equation is:
P(t) = 2m/s*t
And the graph is something like:
Answer:
Q1) Time taking by particle to travel the 40 km wrt. earth = sec.
Q2) The distance traveled by particle where the particle created to surface of earth wrt. particle's frame = 3.84 km.
Q3) The time taking by particle to travel from where it is created to the surface of the earth = sec.
Explanation:
Given :
Speed of particle wrt. earth
Distance between where particle is created and earth surface = 40 km
we know that,
⇒
Where ,
, we know speed of light
∴
∴ Thus, time taking by particle to travel the 40 km wrt. earth
According to the lorentz transformation,
⇒
Where improper length,
proper length (distance measured wrt. rest frame) = 40 km
km
∴ Thus, the distance traveled by particle where the particle created to surface of earth wrt. particle's frame = 3.84 km.
According to the time dilation,
Where improper time (wrt. earth frame time)
,
proper time (wrt. particle frame).
Thus, the time taking by particle to travel from where it is created to the surface of the earth .