The Value Of Acceleration Due To Gravity Is 980cms Class 12 Physics ...

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Sign InThe value of acceleration due to gravity is $980\,cm{s^{ - 2}}$. What will be its value if the unit of length is kilometre and that time is minute?

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• The value of acceleration due ...

AnswerStudy MaterialsNCERT Solutions For Class 12Important Questions for Class 12Revision Notes for Class 12NCERT BooksMaths Formula for Class 12Sample PapersClass 12 MathsClass 12 PhysicsClass 12 ChemistryClass 12 BiologyClass 12 EnglishClass 12 Computer ScienceClass 12 Business StudiesClass 12 EconomicsClass 12 AccountancyClass 12 HindiPrevious Year Question PapersClass 12 Maths Question PapersClass 12 Physics Question PapersClass 12 Chemistry Question PapersClass 12 Biology Question PapersClass 12 English Core Question PapersClass 12 English Elective Question PapersClass 12 Hindi Core Question PapersClass 12 Hindi Elective Question PapersClass 12 Computer Science Question PapersClass 12 Business Studies Question PapersClass 12 Accountancy Question PapersClass 12 Physical Education Question PapersCBSE Class 12 Economics Question PapersClass 12 Entrepreneurship Question PapersExam InfoDate SheetMarking SchemeResultSyllabusMaths SyllabusPhysics SyllabusChemistry SyllabusBiology SyllabusEnglish SyllabusHindi SyllabusAccountancy SyllabusBusiness Studies SyllabusEconomics SyllabusPolitical Science SyllabusPhysical Education SyllabusTextbook SolutionsClass 12 NCERT Exemplar SolutionsClass 12 HC Verma SolutionsClass 12 RD Sharma SolutionsClass 12 RS Aggarwal SolutionsClass 12 DK Goel SolutionsClass 12 TS Grewal SolutionsClass 12 Sandeep Garg SolutionsAnswerVerified381.3k+ viewsHint: Let us first get some idea about the acceleration due to gravity. The acceleration gained by an object due to gravitational force is known as acceleration owing to gravity. The SI unit for it is \[m \times {s^{ - 2}}\].It is a vector quantity since it has both magnitude and direction. The acceleration owing to gravity is denoted by the letter$g$. $g$ has a standard value of \[9.8{\text{ }}m{s^{ - 2}}\] on the earth's surface at sea level. Complete step-by-step solution:As given in the problem:$g = 980\,cm{s^{ - 2}}$As we know that:$1\,cm = \dfrac{1}{{{{10}^5}}}km$ and $1s = \dfrac{1}{{60}}\min $Now, if we substitute the above value in the g then we will get:$g = 980 \times {10^{ - 5}} \times 60 \times 60\,km/{\min ^2}$$g = 35.28\,km/{\min ^2}$Additional Information:Variation of $g$ due to shape of Earth:The earth's radius at the equator is greater than its radius at the poles because it is an oblate spheroid. Because the acceleration due to gravity for a source mass is inversely proportional to the square of the earth's radius, it varies with latitude due to the earth's shape.$\dfrac{{{g_p}}}{{{g_e}}} = \dfrac{{R_e^2}}{{R_p^2}}$Where ${g_e}$ and${g_p}$ are the gravitational accelerations at the equator and poles, respectively, and \[{R_e}\]and \[{R_p}\]are the earth's radii near the equator and poles. It is obvious from the preceding equation that gravity accelerates more near the poles and less in the equator. As the value of g drops, a person's weight falls as he moves from the equator to the poles.Note: In order to solve this problem there are some important points which we should keep in our fingertips. Unit conversion is the most important point to solve this problem. These are the some conversion we should keep in our mind: $10\,mil\lim eters\,(mm) = 1\,centimeter\,(cm)$ $10\,centimeters = 1\,decimeter\,(dm) = 100\,mil\lim eters$$100\,centimeter = 1\,meter(m) = 1000\,mil\lim eters$$1000\,meters = 1\,kilometer\,(km)$.Recently Updated PagesIdentify the feminine gender noun from the given sentence class 10 english CBSEYour club organized a blood donation camp in your city class 10 english CBSEChoose the correct meaning of the idiomphrase from class 10 english CBSEIdentify the neuter gender noun from the given sentence class 10 english CBSEChoose the word which best expresses the meaning of class 10 english CBSEChoose the word which is closest to the opposite in class 10 english CBSEIdentify the feminine gender noun from the given sentence class 10 english CBSEYour club organized a blood donation camp in your city class 10 english CBSEChoose the correct meaning of the idiomphrase from class 10 english CBSEIdentify the neuter gender noun from the given sentence class 10 english CBSEChoose the word which best expresses the meaning of class 10 english CBSEChoose the word which is closest to the opposite in class 10 english CBSE

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