1Newton's second law states that force equals:AMass ÷ accelerationBMass × velocityCVelocity ÷ timeDRate of change of momentumView AnswerDiscussWorkspaceReportSaveEasy
2The centre of gravity of a uniform triangle lies at the:AApexBIntersection of its medians (centroid)CMidpoint of the baseDCircumcentreView AnswerDiscussWorkspaceReportSaveEasy
3Lami's theorem applies to:AAny number of parallel forcesBTwo forces onlyCMoving bodiesDThree concurrent coplanar forces in equilibriumView AnswerDiscussWorkspaceReportSaveEasy
4A body of mass 10 kg accelerates at 2 m/s². The net force on it is:A12 NB5 NC0.2 ND20 NView AnswerDiscussWorkspaceReportSaveMedium
5Rolling friction is generally:ALess than sliding frictionBZero alwaysCEqual to sliding frictionDMore than sliding frictionView AnswerDiscussWorkspaceReportSaveEasy