16A body of mass 10 kg accelerates at 2 m/s². The net force on it is:A20 NB12 NC0.2 ND5 NView AnswerDiscussWorkspaceReportSaveMedium
17Rolling friction is generally:AMore than sliding frictionBLess than sliding frictionCEqual to sliding frictionDZero alwaysView AnswerDiscussWorkspaceReportSaveEasy
18The centre of gravity of a uniform triangle lies at the:AApexBMidpoint of the baseCCircumcentreDIntersection of its medians (centroid)View AnswerDiscussWorkspaceReportSaveEasy
19Varignon's theorem states that the moment of the resultant equals:AZeroBThe largest momentCThe sum of the moments of the component forcesDThe product of the forcesView AnswerDiscussWorkspaceReportSaveEasy