find the weight of a body on the earths surface whose mass is 3kg.
Answers
Explanation:
Weight is a function of mass (M) and gravity (g). It’s generally accepted that Gravity accelerates objects toward the center of mass of the Earth at about 9.8 m/s^2. This varies depending on your location on the Earth and your altitude above the Earth. But only by a few grams at most which won’t throw off your answer much because of your single significant figure. So, to answer your question, weight=mass*gravity, so 3kg*9.8m/s^2=29.4 kgm/s^2. Kilogram meters per second squared is the unit for force also known as Newtons (N). So, your book has a weight of 30 N.
Weight is a function of mass (M) and gravity (g). It’s generally accepted that Gravity accelerates objects toward the center of mass of the Earth at about 9.8 m/s^2. This varies depending on your location on the Earth and your altitude above the Earth. But only by a few grams at most which won’t throw off your answer much because of your single significant figure. So, to answer your question, weight=mass*gravity, so 3kg*9.8m/s^2=29.4 kgm/s^2. Kilogram meters per second squared is the unit for force also known as Newtons (N). So, your book has a weight of 30 N.Significant figures play an important role in answering this question. In general, you can only be as precise as your least precise measurement. If you know that the book’s mass is 3.001 kg and you know the gravity of your location to be 9.80665 m/s^2 then you would multiply the unrounded numbers and then round to 4 significant figures. This 4 number comes from the mass of the book as it is the least accurate measurement. The measurement for gravity has 6 significant figures. (This way the mass of the book would be 29.43 N)
Answer:
3kg only I is the Wright answer