Question 4.1a:
the block shown in the figure is sliding along a frictionless horizontal surface the block's mass is
m = 4.95 kg,
the magnitude of the applied force is
f = 24.0 n,
and the angle of the applied force
f
from the horizontal is
θ = 33.0°.

three forces act on a block labeled m that is on a horizontal surface. the three forces acting on the block are as follows.
an arrow labeled vector f starts on the right side of the block and points up to the right at an angle θ above the horizontal.
an arrow labeled vector n starts at the top of the block and points up.
an arrow labeled vector fg extends from the bottom of the block and points down.
determine the magnitude n of the normal force acting on the block.
n

question 4.1b:
the block shown in the figure is sliding along a frictionless horizontal surface. the block's mass is
m = 4.90 kg,
the magnitude of the applied force is
f = 21.5 n,
and the angle of the applied force
f
below the horizontal is
θ = 29.5°.

three forces act on a block labeled m that is on a horizontal surface. the three forces acting on the block are as follows.
an arrow labeled vector f starts on the right side of the block and points down to the right at an angle θ below the horizontal.
an arrow labeled vector n starts at the top of the block and points up.
an arrow labeled vector fg extends from the bottom of the block and points down.
determine the magnitude n of the normal force acting on the block.
n

question 4.1c:
the block shown in the figure is sliding down a frictionless surface inclined at an angle
θ = 29.9°
above the horizontal. the block's mass is
m = 5.20 kg.

a block labeled m is positioned upon the incline of a right-triangular wedge that makes an acute angle θ with a horizontal surface. two arrows extend from the block.
a diagonal arrow labeled vector n starts on the block and points in a direction perpendicular to the incline and upward.
a vertical arrow labeled vector fg starts on the block and points downward.
determine the magnitude of the normal force n acting on the block.