Final answer:
To accelerate a 270 kg motor scooter at 4m/sec², a force of 1080 Newtons is needed.
Step-by-step explanation:
To calculate the force needed to accelerate an object, you can use Newton's second law of motion, which states that force equals mass times acceleration (F = ma).
In this case, the mass of the motor scooter is given as 270 kg and the acceleration is 4 m/s². Plugging these values into the equation, we get:
F = 270 kg * 4 m/s² = 1080 N
Therefore, a force of 1080 Newtons is needed to accelerate the motor scooter at 4 m/s².