Answer :
Final answer:
The probe's velocity after 8 seconds due to a force of 139 N will be approximately 29.84 m/s.
Explanation:
To find the velocity of the probe after 8 seconds due to the force of 139 N, we can use Newton's second law of motion.
The formula is F = ma, where F is the force, m is the mass, and a is the acceleration.
First, let's calculate the acceleration:
a = F/m = 139 N / 33.8 kg = 4.11 m/s²
Next, we can use the formula v = u + at to find the final velocity:
v = 0 + 4.11 m/s² * 8 s = 32.9 m/s
Therefore, after 8 seconds, the probe's velocity will be 32.9 m/s, which is approximately 29.84 m/s (option B).
