Question

Think about Newton's 2nd Law, Force equals mass times acceleration. Liz puts a 1 kg weight and a 10 kg weight on identical wagons. She then applies a 10N force to each wagon. What will be true about the acceleration of the bottom wagon that has more mass?

Answer 1

The answer is that gravity defends of the Wight of an object with it distance

Answer 2

"According to Newton’s Second Law,  

$Force = mass \times acceleration$

Here Force = 10 N for both the masses 1 kg and 10 kg

Case 1:

$10 = 1 \times acceleration$

$Acceleration = 10\frac { m^{ 2 } }{ s }$

Case 2:

$10 = 10 \times acceleration$

$Acceleration = 1\frac { m^{ 2 } }{ s }$

Thus it is clear from the above the two cases that the acceleration of the bottom wagon will be smaller when applied the same amount of force to both the wagons.

The correct option is 2"