His diagram shows a 4 kg object being pushed along a frictionless surface. The object accelerates at 13 m/s². What is the magnitude of the force was applied to the object? a.9 N
b.39 N
c.3 N
d.52 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

From the question we have

force = 4 × 13

We have the final answer as

Hope this helps you

i think its d if wrong im sorry