Question

Two forces, one of 3 newton and another of 4 newton are applied on a standard 1 kg body. placed on a horizontal and frictionless surface, simultaneously along the x-axis and the y-axis, respectively, as shown below:
The magnitude of the result acceleration is ________________.

• A. $7m/s^2$
• B. $1m/s^2$
• C. $5m/s^2$
• D. $\sqrt{7}m/s^2$

Answer 1

The correct option is C $5m/s^2$

$F_{net}=\sqrt{4^2+3^2}$ N

= 5 N

Since

F =ma

and m= 1 kg

this shows that a =$5m/s^2$