the net force acting on an object is equal to the $-$ A mass of the obiect. B acceloration of the objoct. C change in momentum of the object. D rate of change in momentum of the object. A block of mass $1kg$ is connected to another block of mass $4kg$ by a light inextensible string. The at $30$ to the horizontal by means of a constant $40N$ force parallel to the plane as shown in the diagram below. The magnitude of the kinetic tric vonal force The magnatude of we kinetc tink bion the eurtare and the $4$ ig block is $10N$ block and the surface is $0\mathrm{.}292\mathrm{.}1$ State Newton's third law of motion in words. $22$ Draw a labelled free$-$body diagram showing ALL the forces acting on the $1kg$ block as it moves up the Draw a lat $23$ Calculate the magnitude of the $2\mathrm{.}3\mathrm{.}1$ Kinetic frictional force between