Question

Consider the figure given below. if Coefficient of friction is u then what is the least value of μ so the system remains at rest 1) 0.23 2) 0.2 3) 0.203 4) 0.13​

Answer 1

Answer:

0.23 is correct option

53°-30°= 23°

23/100 =o.23

Answer 2

The system remain at rest in μ=0.203.

Explanation:

$F_{1}=$μ$mgcos53^{0}$

$F_{2}=$μ$N_{2}$

=μ$mgcos30^{0}$

$mgsin53^{0}-$μ$mgcos53^{0}-T=0$

$T-mgsin30^{0}$μ$mg$$cos30^{0}$

μ=0.203.