The ratio of energy required to accelerate a car from rest to 20 ms^(-1) to the energy needed to accelerate from 20ms^(-1) to 40 ms^(-1) is

The ratio of energy required to accelerate a car from rest to 20 ms^(-

1.	The ratio of energy required to accelerate a car from rest to 20 ms^(-1) to the energy needed to accelerate from 20ms^(-1) to 40 ms^(-1) is
Answer» `1: 1` `1: 3` `1: 2` `1: 4` ANSWER :B