(a) time taken for the car to accelerate from v to 2v = t =
(b) velocity of the car moving at 2t seconds = ΔV = 2at
(a) we know that,
a=
where, is the final velocity
is the initial velocity
a = acceleration
t = time
Time taken to accelerate from V to 2V:
t =
(b) We know that,
a=
where, is the final velocity
is the initial velocity
a = acceleration
t = time
how fast is the car moving at 2t seconds after starting,
we can represent - = ΔV
at time = t= 2t, it becomes
a= = a = ΔV/2t
t= ΔV/2a
ΔV = 2at
<h3>What is acceleration?</h3>
Rate of change of velocity with time, both in terms of speed and direction is known as acceleration.
<h3>What is speed?</h3>
- the rate at which an object's location changes in any direction.
- The distance traveled in relation to the time it took to travel that distance is how speed is defined.
- Since speed simply has a direction and no magnitude, it is a scalar quantity.
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Answer:
Explanation:
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<u>Answer: </u>Option(a)
According to Einstein`s Idea,Time and Space are relative.
<u>Explanation:</u>
Einstein gave two theories about relativity called as Special Theory and General Theory of Relativity.The term relativity basically tells us the behavior of an event from the observation of different observers.
For example, a person when sitting in a moving car when looks outside, and observes that almost everything outside the car is moving but another person sitting inside car is at rest. It tells us the events depend on an observer. Einstein defined space and time as a single entity called space-time, and it is the fourth dimension of an event.