Question

find the net force from the diagrams

Answer 1

We are asked to find out the net force in the given cases:

Explanation: If the net forces are acting in opposite directions then we have to subtract them and if they are acting in the same direction then we have to add them.

Same direction must be → → or ← ←

Different direction must be → ←

Required solution:

Part a) 5 N → ← 3 N

As they are acting in different direction so we have to subtact them.

➝ 5 N - 3 N

➝ 2 Newton

Part b) 10 N → 5 N →

As they are acting in same direction so we have to add them.

➝ 5 N + 10 N

➝ 15 Newton

Part c) 8 N → ← 3 N

As they are acting in different direction so we have to subtact them.

➝ 8 N - 3 N

➝ 5 Newton

Part d) 9 N → → 6 N ← 5 N

Firstly, as they are acting in same direction so we have to add them.

➝ 9 N + 6 N

➝ 15 Newton

Now, as force is acting in different direction so we have to subtact.

➝ 15 N - 5 N

➝ 10 Newton $\:$