Physics Past Questions and Answers

Solid friction, like viscosity is

The slope of a linear distance-times graph represents

A body of mass 2kg is released from rest on a plane inclined at an angle of 60° to the horizontal. Calculate the acceleration of the body down the plane.[g = 10ms\(^{-2}\)]

The total area under a force-velocity graph represents

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms\(^{-2}\)]. Calculate the speed of projection