THERMO Spoken Here! ~ J. Pohl ©  ( A0300)( A1040 -  )

Shear-Pin

t A box (m = 50kg) rests on a floor having coefficients of friction 0.3 (static and dynamic). The box, modeled as an Extended Body, is restrained by a "shear pin" that will fracture should the force on it attain 240 Newtons.

(i)  What force is required to put the box in motion?
(ii)  For constant force, (i), what is the acceleration of the block? What acceleration happens?
(iii)  Does the box attain a constant speed? If so what speed?

t





t





t

t

t

t

t

t

t

t

t

Shear Pin

t A box (m = 50kg) rests on a floor having coefficients of friction 0.3 (static and dynamic). The box, modeled as an Extended Body, is restrained by a "shear pin" that will fracture should the force on it attain 240 Newtons.

Premise presently unwritten!