HSC Science (General) 12th Board ExamMaharashtra State Board
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A Hole is Drilled Half Way to the Centre of the Earth. a Body is Dropped into the Hole. How Much Will It Weigh at the Bottom of the Hole If the Weight of the Body on the Earth’S Surface is 350 N? - HSC Science (General) 12th Board Exam - Physics

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Question

A hole is drilled half way to the centre of the Earth. A body is dropped into the hole. How much will it weigh at the bottom of the hole if the weight of the body on the Earth’s surface is 350 N? 

Solution

Given :        `W=mg=350N,d=R/2`

To Find:      `Weight (W_d)`

Formula:     `g_d=g[1-d/R]`

Since `W_d=mg[1-d/R]`

`W_d=350xx[1-(R/2)/R]`

`=350xx1/2=175`

`W_d=175N`

The body would weigh 175 N half way down to the centre of the earth.

  Is there an error in this question or solution?

APPEARS IN

 2016-2017 (March) (with solutions)
Question 2.5 | 2.00 marks
Solution A Hole is Drilled Half Way to the Centre of the Earth. a Body is Dropped into the Hole. How Much Will It Weigh at the Bottom of the Hole If the Weight of the Body on the Earth’S Surface is 350 N? Concept: Acceleration Due to Gravity and Its Variation with Altitude and Depth.
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