1yes jagran it is not my sum it is from goiit i had a odubt in the answers and also in the questions s i asked u all otherwise i could hv asolved
Ques1) Calculate the change in the value of g at altitude 45 defree. Take radius of earth = 6370 km.
Ques2) Determine the speed with which the earth would have to rotate on it's axis , so that a person on the equator would weigh 3/5 th as much as present. Take R = 6400 km.
the 2nd one is easy w is coming as 1/100 ...... so v=64ms could anyone pls check this
and in th efirst question altitude of 45 means what hieght
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2 Answers
1formula for change in g due to change in longitude is
gchaned=g-rw2cos2x
where w= angular velocity of earth
1)ur question is wrong it shud have been latitude.u cant find change in g due to altitude unless u know the height.altitude 0f 45 will not give u any height.
2)3/5= 10 -6400w2cos0
ie 3/5=10-6400w2. find w and then v=rw=6400*w
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