Question

14. A rope has breaking tension of 400 N. A mass of 30 kg is hanging. What can be the maxi-
mum acceleration upwards such that rope does not break?
8
(a) 2 m/s2 (b) 4 m/s? (c)3/10 m/s? (d) 10/3 m/s2​

Answer 1

Answer:

Explanation: t-mg =ma (where t is tension , g=10)

400-300=30a

100/30=a

∴ a=10/3