Navigate

The weight of a body on surface of earth is 12.6 N. When it is raised to a height

The weight of a body on surface of earth is 12.6 N. When it is raised to a height half the radius of earth its weight will be

Options

(a) 2.8 N
(b) 5.6 N
(c) 12.6 N
(d) 25.2 N

Correct Answer:

5.6 N

Explanation:

Weight of body on the surface of earth, mg=12.6 N
At height h, the value of g’ is given by
g’=g (R/R+(R/2))²
=g 4/9
Weight at height, h=mg 4/9
h=12.6×4/9 =5.6 N

WB2008
admin:

Related Questions

  1. A disc of mass 100 g is kept floating horizontally in air by firing bullets
  2. A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
  3. In Young’s double slit interference experiment, using two coherent waves
  4. At place on earth, the vertical component of earth’s magnetic field is √3 times
  5. Two bodies A(of mass 1kg) and B(of mass 3 kg) are dropped from heights of 16m and 25m