Anonymous

# What is the speed of electron after 3 nanosecond?

A charge of mass 0.49 microgram is accelerated from rest in a uniform electric field at 3 nano second. A force of 4 N is exerted on the charge by the field. Neglect the gravitational force, what is the speed of electron after 3 nanosecond?

### 1 Answer

Relevance

- NCSLv 71 month agoFavourite answer
a = F / m = 4N / 0.49e-9kg = 8.19e9 m/s²

v = a*t = 8.19e9m/s² * 3e-9s = 24 m/s

If you find this helpful, please select Favorite Answer!

Still have questions? Get answers by asking now.