If a force of 12 n is applied to an object with a mass of 2 kg, what will be its acceleration? 0.17 m/s2 6 m/s2 24 m/s2 14 m/s2

The acceleration exerted by the object is .

Option B

Explanation:

As per Newton’s second law of motion, the external force applied on an object will be equal to the product of mass (m) of the object and the acceleration exerted by the object. So the mathematical representation of Newton’s second law can be written as  

Thus as the force on the object is given as 12 N and mass of the object is given as 2 kg. So as per the formula

Thus the acceleration of the object will be

Hence, the acceleration of the object with mass 2 kg and force applied of about 12 N is

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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