To find the force required to accelerate a 15 kg rocket at 3 m/s², you can use Newton's second law of motion, which states that Force (F) = mass (m) × acceleration (a).
F = m × a
F = 15 kg × 3 m/s²
F = 45 N
Therefore, a force of 45 Newtons needs to be applied to produce the desired acceleration.