If rope of lift breaks suddenly, the tension exerted by the surface of the lift

If rope of lift breaks suddenly, the tension exerted by the surface of the lift (a = Acceleration of lift) is

Options

(a) mg
(b) m(g+a)
(c) zero
(d) m(g-a)

Correct Answer:

zero

Explanation:

If the rope suddenly breaks, acceleration = g
So substituting in formula, tension T=m(g−a)=0

admin:

Related Questions

  1. An electric dipole is placed at an angle 30°with an electric field intensity 2×10⁵N/C.
  2. The ratio of amplitude of magnetic field to the amplitude of electric field for
  3. The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
  4. The thermo e.m.f. E in volts of a certain thermocouple is found to vary
  5. The temperature coefficient of a resistance wire is 0.00125 per degree.