PSAD SITUATION 32: Sliding of a Plank (Friction) | CELE November 2023

CELE Past Board Exam Problem
SITUATION 32: A 120 kg man walks on a 4 m plank resting on rough surfaces at A and B. Given: Coefficient of friction at A = 0.40 and coefficient of friction at B = 0.20.
1. At what distance x will the plank start to slide?
A. 1.35 m C. 2.65 m
B. 1.68 m D. 2.32 m
2. What is the friction force (N) at A?
A. 256.7 C. 641.9
B. 98.6 D. 492.9
3. What is the vertical force (N) at B?
A. 256.7 C. 641.9
B. 98.6 D. 492.9
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[@Prota-structure]

Matutulog na may natutunan.thank you Sir🫡

[@harfmiranda]

Good night! Bukas ulit 😂

[@daturonnelmacmod7521]

Power🔥