Question

A 1 kg block and a 0.5 kg block move together on a horizontal frictionless surface. Each block exerts a force of 6 N on the other. The blocks move with a uniform acceleration of

• A. 3 m $s^{-2}$
• B. 6 m $s^{-2}$
• C. 9 m $s^{-2}$
• D. 12 m $s^{-2}$

Answer 1

The correct option is D 12 m $s^{-2}$

$\therefore 6N=0.5\times a\therefore a=\frac{6}{0.5}=12m/s^2$