This is a suggested solution to the question in GCE O Level Pure Physics Paper 1, MCQ question 7.

Suggested Solution

The answer is A. That is, 800N.

 

Explanation

Resultant Force, F = Driving Force – Frictional Force = ma

Given : a = 2.5 m/s2

Therefore, F= 800kg x 2.5 m/s2

             = 2000N

 

Hence,

Driving Force = Resultant Force – Frictional Force

                = 2000 – 1200 = 800N

 

 

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