In the diagram (given below), the broken lines represent the paths followed by particles W, X, Y and Z respectively through the contant field E. The number below the field represent meters.

Suppose that the field strength E is `10 N//C` and particle Y has a charge of `-10 C`. When is the mass of particle Y

Options

A. 1 kg
B. 2 kg
C. 3 kg
D. 4 kg

Answer

D

Explanation

`a=(qE)/(m)` & `v^(2)=u^(2)+2as`