Navigate

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

AFMC2002
admin:

Related Questions

  1. Cohesive force is experienced between
  2. The initial rate of increase of current, when a battery of emf 6 V is connected
  3. The two ends of a metal rod are maintained at temperatures 100°C and 110°C.
  4. α-particles, deuterons and protons of same energy are moving in a perpendicular
  5. When you move from equator to pole, the value of acceleration due to gravity (g)