Question

Two blocks A and B are released from rest on
a 30° incline,
when they are 18 m apart. The coefficient of friction under the
upper block A is 0.2 and that under lower Block B is 0.4 In what
time block A reaches the block B after they touch and move as
Single unit, what will be the contact force between them? weights
of block A and B
100N and 80N respectively​

Answer 1

Answer:

I think

2 pls mark as brainlost