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प्रश्न
What is the weight of a body placed at the centre of the earth?
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उत्तर
The weight of a body placed at the centre of the earth is zero as
g = 0
∴ W = mg
= 0
संबंधित प्रश्न
Define equilibrium.
State the condition when a body is in dynamic equilibrium.
A uniform meter scale is in equilibrium as shown in the diagram :
(i) Calculate the weight of the meter scale.
(ii) Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark ?
F is shifted towards 0 cm
or
F is shifted towards 100 cm
State the principle of moments. A meter scale is pivoted at 30 cm mark and it is in equilibrium when a mass of 40 g is suspended from 10 cm mark. Calculate the mass of the ruler.
Give scientific reason for the following:
In a moving bus the standing passenger stands keeping both his legs apart.
What makes a balance faulty?
In equilibrium algebraic sum of moments of all forces about the point of rotation is ______.
State the principle of moments.
What is a couple?
When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides ______ force necessary for circular motion.
