Question

how to solve it???????​

Answer 1

Answer:

the correct answer is 2nd 20N

pls everyone follow up

Answer 2

Force = 100 N

Mass(A) = 10 kg

Mass(B) = 5 kg

Mass(C) = 10 kg

Total mass = 25 kg

From Second law of Motion,

F = ma

a = F / m

a = 100 / 25

a = 4 m/s^2

Now,

Contact force between B and C :

= a * Mass(C)

= 4 * 10

= 40 N

Hence option 3) 40 N is correct.