Question

three blocks a, b and c of masses 10kg, 3kg and 5kg respectively are connected by a light inextensible string and they are moved on a smooth horizontal plane. if a force of 36n is applied to the strong connected to c, the ratio of the tensions t1 and t2 in the string is​

Answer 1

pls refer the attachment for better understanding

in order to solve this question use the boundary method

STEP 1

consider the all the blocks in the big circle first in order to find the acceleration

F = ma

36 = 18 ×a

a=36/18

a=2 m/s²

STEP 2:

36 - T 1 = 10×2

T 1= 36 -20 =16 N

STEP 3:

T2 =ma

T2 = 5 ×a

T 2 = 10 N

RATIO OF T 1 AND T 2

T 1/T2 =16/10 =1.6 N