Question

a lift of mass 1000 kg is moving with acceleration 3.0m/sec² if g=10m/sec², tension in the rope of lift is:

a) 2600N.
b) 2000N
c) 1400N
d) 1300N​

Answer 1

Answer:

Explanation:

The mass of the lift is 1000kg, the acceleration is 1m/s  2

 and the acceleration due to gravity is 9.8m/s  2

.

The tension developed in string is given as,

T=mg+ma

=1000×9.8+1000×1

=10800N

Thus, the tension developed in the string is 10800N.