An electron with a charge e and mass m is accelerated from rest for a time T by a uniform electric field that exerts a force F o
1 answer:
Answer:
Explanation:
charge of the electron = e
mass of the electron = m
Force due to electric field = F
initial velocity = 0
time taken = T
Electric field is the region around a particle which is charge where in a force is exerted on another particle which is charged.
Force on electron due to presence of uniform electric field (E):
F = e E
⇒
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Initial speed , u = 0 m/s .
Final speed , v = 91 km/h = 25.28 m/s .
To Find :
a) Average acceleration .
b ) Assuming the motorcycle maintained a constant acceleration, how far is it from the traffic light after 3.3 s .
Solution :
a )
We know ,by equation of motion :
b)
Also , by equation of motion :
Hence , this is the required solution .