Calulate the force needed to accelerate a 2,300 kg mass at 5.5m/s/s acceleration.

Have you tried Newton's old reliable #2?

F = m a

m = mass, kg
a = acceleration, m/s^2
F = Force, newtons

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Find the force needed accelerate a 3 kg object at 4m.s

To calculate the force needed to accelerate an object, you need to use Newton's second law of motion, which states that force (F) is equal to the mass (m) of the object multiplied by the acceleration (a) applied to it. The formula is:

F = m * a

Given that the mass (m) is 2,300 kg and the acceleration (a) is 5.5 m/s², we can substitute these values into the formula to find the force (F):

F = 2,300 kg * 5.5 m/s²
F = 12,650 Newtons

Therefore, the force needed to accelerate a 2,300 kg mass at 5.5 m/s² acceleration is 12,650 Newtons.