Question

Evaluate if the 2-kg crate is in equilibrium or is sliding knowing that force P=60 N. If it is sliding make sure to mention if it will slide uphill or downhill. In any case evaluate : a) the actual friction acting on the crate. b) Where the normal force is applied (will it tilt)? Other data: alpha=a= 27°; theta = 0 = 37°; us = 0.30; Uk = 0.25; a = b = 40 cm; c= 20 cm

Answer 1

PabON Giren, a-b- foum c=20cm, 48-03 mug = 0.25 C 2702d Case I (Considering crate moving w te moving uphill) BD PSMO IN N = 29 Cosat Paino N = 249.81 C 27t60x Sin 37° No 786 53-59N. Y I a YN 28 Smd for Block to move upward. Ploso - 28 Sma > MSN. LHS a box Cos 3 7 _ 2x 9.81 X Sin 27 = 39.01. UN=0.3x53.59 = 16.077 RHS greater than R4S Since LHS is 7 B crate would be moving upward tion will & Kinetic friction - MKXN = 0.25% 53.59 = 13.3975 N.

(6) Blouses n ag sina e Normal force will be acting at point a for Crate to tilt (PCoso-28 Sn 2) XC XNX₂ = 7.802N (Ploso-29 Smaxe = 39.014 0.2 HS = RoHS = 0.2 = 10.718N. = 53.59% Nxb figure) Yes crate will tilt about boint o (shown in
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