Question

Applying a force of 5 newtons on a wooden plank with mass m1 kg, it accelerates with an acceleration of 10 ms⁻ ². Another plank of mass m ²kg accelerates with an acceleration of 20 ms⁻ ² when the same force is applied. If both the planks are tied with each other and the same force is applied on them, what will be the acceleration?

• A. 6.67 ms⁻ ²
• B. 1.67 ms⁻ ²
• C. 5.67 ms⁻ ²
• D. 4.67 ms⁻ ²

Answer 1

Answer: (A)