Answer:
A. The sum of all the forces acting on an object.
Answer:
2090 J
Explanation:
the work done to move the cart is equal to the product between the force applied and the distance traveled:

In this case, the force applied is F=209 N, while the distance covered is d=10 m, therefore the work done is

The answer would be 20000
The answer in standard form/scientific notation would be 2 x 10^4
(The exponent is 4 because that's how many digits after the 2 there is)