Question

How force is 10i here???

Answer 1

$ta = 3i \times 10i \\ \\ ra = 3i \\ \\ and \: also \: given \: that \: \\ \\ ta = ra \times F \\ \\ = > F = \frac{ta}{ra} = \frac{3i \times 10i}{3i} \\ \\ = > F = 10i$

Answer 2

Explanation:

ra=3i

ta=3i×10i

F×ra=ta

f=ta÷ra

3i×10i/3i

f=10i