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3 years ago

an object weighs 98 n on earth. How much does it weigh on planet x where the acceleration due to gravity in 6 m/s^2

2 answers:

7 0

60 N because 98N=mg (here g= 9.8 on earth) thus mass can be calculated which is 98/9.8 = 10kg Now,new weight with g = 6m/s^2 =m×g' (here g' is new acceleration of the new planet) = 10×6=60N

Ainat [17]3 years ago

6 0

Answer:

The weight on planet x is 60 N

Explanation:

It is given that,

Weight of an object on earth, W = 98 N

Value of acceleration due to gravity, $g=9.8\ m/s^2$

Weight, $W=mg$

$m=\dfrac{W}{g}=\dfrac{98\ N}{9.8\ m/s^2}=10\ kg$

Since, mass of an object remains same everywhere.

If the value of acceleration due to gravity on planet x is, $a=6\ m/s^2$

So, weight on the planet x is,

$W=m\times a$

$W=10\ kg\times 6\ m/s^2$

W = 60 N

So, the weight on planet x is 60 N. Hence, this is the required solution.

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Explanation:

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3 years ago

A thin, light wire 75.2 cm long having a circular cross section 0.560 mm in diameter has a 25.2 kg weight attached to it, causin

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Answer:

The stress is calculated as $1.003\times 10^{9}\ Pa$

Solution:

As per the question:

Length of the wire, l = 75.2 cm = 0.752 m

Diameter of the circular cross-section, d = 0.560 mm = $0.560\times 10^{- 3}\ m$

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Elongation in the wire, $\Delta l = 1.10\ mm = 1.10\times 10^{- 3}\ m$

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The stress in the wire is given by:

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Force is due to the weight of the attached weight:

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$\sigma = \frac{246.96}{2.46\times 10^{- 7}} = 1.003\times 10^{9}\ Pa$

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