Question

A 200 kg object moves with an initial velocity of 3 m/s east is acted upon by a net force said to be 10 N. What is the final velocity of the car after 3 seconds?

Answer 1

To determine the final velocity of the object, we can use the equation of motion:

v = u + at

Where: v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time.

Given: u = 3 m/s (initial velocity) a = F/m = 10 N / 200 kg = 0.05 m/s^2 (acceleration) t = 3 s (time)

Now we can substitute the given values into the equation to find the final velocity:

v = u + at v = 3 m/s + (0.05 m/s^2) * 3 s v = 3 m/s + 0.15 m/s v = 3.15 m/s

Therefore, the final velocity of the object after 3 seconds is 3.15 m/s.