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. A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance
  2. An inclined plane makes an angle of 30° with the horizontal.A solid sphere
  3. In which of the following systems will the radius of the first orbit (n=1) be minimum?
  4. A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
  5. A stone thrown into still water, creates a circular wave pattern moving radially