Question

In the previous problem, suppose m2 = 2.0 kg and m3 = 3.0 kg. What should be the mass m, so that it remains at rest?

Answer 1

Given :

m2= 2kg

m3=3kg

For m1 to be at rest, a1 = 0.

T − m1g = 0

T = m1g    …(i)

For mass m2,

T/2 − 2g = 2a

T = 4a + 4g    …(ii)

For mass m3,

3g – T/2= 2a

T = 6g − 6a    …(ii)

From equations (ii) and (iii), we get:

3T – 12g = 12g – 2T  

T = 24g/5= 4.08g

sunstitute the value of T in equation (i), we get:

m1 = 4.8kg

Answer 2

Answer:

Refer to the attachment for the answer