A) 50.2 kgf
B) 25.5 kgf
C) 75.0 kgf
D) 42.3 kgf
Correct Answer: D
Solution :
\[F=mg\sin \theta +\mu mg\cos \theta \] In the diagram, \[\sin \theta =\frac{1}{8}\]and\[\cos \theta =\frac{\sqrt{63}}{8}\cong 1\] \[\therefore \] \[F=100\left( \frac{1}{8}+0.3 \right)g\] \[=100(0.125+0.3)kg\,\,f\]You need to login to perform this action.
You will be redirected in
3 sec