Answer: 20 m/s
Explanation:
First of all, we can calculate the acceleration of the car by using Newton's second law:
[tex]F=ma[/tex]
where F is the net force on the car, m is the mass, a is the acceleration. Using m=1000 kg and F=2000 F, we find the acceleration
[tex]a=\frac{F}{m}=\frac{2000 N}{1000 kg}=2 m/s^2[/tex]
The acceleration is also equal to the ratio between the change in velocity and the time taken:
[tex]a=\frac{\Delta v}{\Delta t}[/tex]
Since we know the time taken, [tex]\Delta t=10 s[/tex], we can re-arrange the formula to find the change in velocity of the car:
[tex]\Delta v=a \Delta t=(2 m/s^2)(10 s)=20 m/s[/tex]
