Answer:
The correct answer is option B.
Step-by-step explanation:
Force of an object is defined as product mass and acceleration by object is moving.
Force=
Given mass of the cart= 30kg
Acceleration by which cart is pushed =
Putting in the values we get,
Force =
![1kgms^(-2)=1Newton(N)](https://img.qammunity.org/2020/formulas/physics/middle-school/b5ym767431cby2sjlelgod6euni8x7gyi6.png)
Hence, the correct answer is option B.