An object which is dropped from a certain height has zero (0) initial velocity.
1 answer:
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Answer:
The minimum time interval required is 18.1 sec
Explanation:
Given:
Magnetic field T
Minimum induced emf V
Angle between magnetic field and area vector 34°
Area of door
According to the faraday's law,
Where magnetic flux
From the formula of magnetic flux,
Initially,
Wb
When door is closed,
Wb
Hence
Wb
Put the values in above equation,
sec
Therefore, the minimum time interval required is 18.1 sec
The go-kart's velocity after time
is given by
where is its initial velocity and
is its acceleration. After
, the go-kart stops completely, so
where because we know the go-kart is slowing down.