Th friction of the air causes a vertical retardation equal to 10% of the acceleration due to gravity.Take g=10m/s^2.The maximum height and time to reach the maximum height will be decreased by Share with your friends Share 0 Satyajeet Kumar answered this Dear student, The solution to this question is attached here. Regards. 1 View Full Answer Vedalakshmipriya answered this I don't know -1