Answer:Twice
Explanation:
It is given that car is raised on a lift with respect to ground.
Suppose car is raised by a height of h m from ground having mass m so gain in Potential Energy by car is
Gain in [tex]P.E._1=m\times g\times h[/tex]
Now if it were raised twice as high,i.e. 2 h height from ground then gain in Gravitational Potential Energy
[tex]=m\times g\times 2h[/tex]
[tex]P.E._2=2m\cdot g\cdot h[/tex]
It is clear that [tex]P.E._2=2\cdot P.E._1[/tex]
Thus in second case gain in Potential Energy is twice as compared to first case
