[12] 40 N
1 kg
A block of mass 1 kg is connected to another
block of mass 4 kg by a light inextensible string.
The at 30° to the horizontal, by means of a
constant 40 N force parallel to the plane as
shown in the diagram below.
The magnitude of the kinetic frictional force
between the surface and the 4 kg block is 10 N.
The coefficient of kinetic friction between the 1 kg
block and the surface is 0,29.
4 kg
30°
21
2.2
(2)
2.3
State Newton's third law of motion in words.
Draw a labelled free-body diagram showing ALL the forces acting on the 1 kg block as it moves up the
incline.
Calculate the magnitude of the
2.3.1 Kinetic frictional force between the 1 kg block and the surface
23.2 Tension in the string connecting the two blocks
(5)
(3)
(6)
PAS​