Level:
Project ID:
9000038701
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.) The friction \(F_{t}\)
is given by the formula \(F_{t} = fF_{n}\),
where \(f\)
is the coefficient of the friction.What is the influence of the increasing angle
\(\alpha \) on
the forces acting on the box?
\(F_{1}\) becomes
bigger and \(F_{t}\)
becomes smaller
both \(F_{1}\)
and \(F_{t}\)
become smaller
\(F_{1}\) becomes
bigger, \(F_{t}\)
does not change
\(F_{1}\) becomes
smaller, \(F_{t}\)
does not change
both \(F_{1}\)
and \(F_{t}\)
become bigger
\(F_{1}\) becomes
smaller and \(F_{t}\)
becomes bigger