1.
The answer is 20 m/s.
The formula for the final velocity of an object after being acted upon by a force for a certain time is:
v = u + at
Where:
- v is the final velocity
- u is the initial velocity
- a is the acceleration
- t is the time
In this problem, we are given that the initial velocity is 10 m/s, the force is 5 N, and the time is 10 s. We can find the acceleration by dividing the force by the mass:
a = F / m
a = 5 N / 10 kg
a = 0.5 m/s^2
Now we can plug these values into the formula for the final velocity:
v = u + at
v = 10 m/s + 0.5 m/s^2 * 10 s
v = 20 m/s