Question

m = 20 kg M= 10 kg
find normal force acting on the floor?
(1) 300 N
(2) 100 N
(3) 200 N
4
(4) None of these​

Answer 1

$\bf\: \: \underline{\boxed{\rm{\red{\mapsto \: \: \: question \: \: \: \: \: \underline{\red{}}}}}}$

m = 20 kg M= 10 kg

find normal force acting on the floor?

$\: \: \underline{\boxed{\sf{\purple{\mapsto \ \: answer}}}}$

Normal force is equal to weight of the system,

it can be given as

N=(m 1 +m 2)g

=(20+10)×10

=300N

$\bf option \: 1 \: is \: your \: answer$

Answer 2

(1) 300 N (✔)...........