Question

online make up 2020 july.pdf Close 6. Figure shows a box of mass m2 = 1.0kg on a frictionless plane inclined at angle 0 = 30°. It is connected by a cord of negligible mass to a box of mass m, = 2.5kg on a horizontal frictionless surface. The pulley is frictionless and massless. a) If the magnitude of horizontal force is 2.3N, what is the tension in the connecting cord? b) What is the largest value the magnitude of F may have without the cord becoming slack? be Search for O of o NIC PHOTO OF ID

physics

Answer 1

massless Since the pulley is frictionless and The tensin both side of the Pulley is equal. ma T Now applying Newton's second of motion to the system, law if à is the accderation of the system, Imagsino mag

(m, + m2) a = F + Magsino F + Magsino mitm2 my. Now applying Newton's second how to E TT mya. T = Mqa - F. F +mzgsine) MA mitm2 Now putting the values we get 2.3 T = 25 ( 2:3+1X9-8% sin 30) x 2.5+1 = 5:14 - 2.3 = 2.84 N. " Tension of the connecting cord T=2184 No let Fm is the matinum frica without making

the Cord Stack in this condition, T7O, Fm + magsine ma Fm. mitm2 mitm 22 Fm Magsino -1 mi 4.9 fm magsino Am, +m2 = 12:25 Ni 3.5 - m2)-1 2.5 mi