Level:
Project ID:
9000038704
Accepted:
1
Clonable:
0
Easy:
0
The box is on the slope as in the picture. The angle of the slope is
\(\alpha \).
The forces acting on the box are the force of gravity
\(\vec{F_{G}}\) and the
friction \(\vec{F_{t}}\).
The force of gravity can be replaced by two components
\(\vec{F_{1}}\) and
\(\vec{F_{n}}\). (The force
\(\vec{F_{1}}\) is parallel to
the slope and \(\vec{F_{n}}\)
is perpendicular to the slope.) For \(F_{1} = 20\, \mathrm{N}\) and
\(F_{n} = 55\, \mathrm{N}\) find the
corresponding \(\alpha \).
\(\alpha \doteq 20^{\circ }\)
\(\alpha \doteq 21^{\circ }\)
\(\alpha \doteq 69^{\circ }\)
\(\alpha \doteq 70^{\circ }\)
\(\alpha \doteq 30^{\circ }\)
\(\alpha \doteq 29^{\circ }\)