Answer:
![\boxed {\tt 600 \ Newtons}](https://img.qammunity.org/2021/formulas/chemistry/high-school/s4mek5m4kdz07wongayq1lwftrdumyacme.png)
Step-by-step explanation:
Force can be found by multiplying the mass and the acceleration.
![F=m*a](https://img.qammunity.org/2021/formulas/chemistry/high-school/nag7dy6lxgr5k3xd4256ag2sk9xgzcostg.png)
The mass of the sled is 300 kilograms and the acceleration is 2 meters per second squared.
![F= 300 \ kg * 2 \ m/s^2](https://img.qammunity.org/2021/formulas/chemistry/high-school/i6qj3ovoflyxm0id3mqlkcbqj5xqmygyw9.png)
Multiply.
![F= 600 \ kg * m/s^2](https://img.qammunity.org/2021/formulas/chemistry/high-school/eoa3fkv4ky0wiog09h7rzkbhysohd56799.png)
1 kilogram-meter per second squared is equal to 1 Newton. Therefore, 600 kilograms-meter per second squared is equal to 600 Newtons.
![F= 600 \ N](https://img.qammunity.org/2021/formulas/chemistry/high-school/wf8dkjrg5zt56y4orowoxah9putj2ic24y.png)
The force used on the sled is 600 Newtons.