Question

A block of mass 5kg is suspended by means of a uniform cord of mass 2kg attached to the roof of a lift as shown. if the lift starts accelerating up with a=5m/s²(g=10m/s²). The tension in the midpoint of the cord is
a) 90N
b) 100N
c) 40N
d) 50N​

Answer 1

Answer:

d 50 newton is the right answer according to me