question_answer

A driver accelerates his car first at the rate of \[1.8\text{ }m/{{s}^{2}}\]and then at the rate of\[1.2\text{ }m/{{s}^{2}}\]. The ratio of the two forces exerted by the engine in two cases will be:

A) 1 : 2

B) 2 : 1

C) 4 : 3

D) 3 : 2

E) None of these