If the mass of a body is 5kg, its weight on the surface of Earth would be: (Take g=9.8ms−2)
A
49N
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B
60N
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C
50N
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D
70N
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Solution
The correct option is A49N Given, mass of a body m=5kg and acceleration due to gravity g=9.8ms−2.
As we know, weight, W=m×g=5×9.8=49N
Therefore, weight on the surface of the earth would be 49N.