progamerz Posted October 14, 2016 Share Posted October 14, 2016 The question is: A ball takes 5s to hit the ground, when dropped from the top of the building. What is the height of the building? And the answer is: My question is how we got g and is gravitation force denoted as g or what is g? I have exam on this sunday Thanks. 1 Link to comment Share on other sites More sharing options...
Decode Posted October 14, 2016 Share Posted October 14, 2016 g is the gravitational force. Since it was 'dropped' from a building the acceleration of the ball is gravity. Link to comment Share on other sites More sharing options...
progamerz Posted October 14, 2016 Author Share Posted October 14, 2016 g is the gravitational force. Since it was 'dropped' from a building the acceleration of the ball is gravity. This is first year for me in physics, So i am completely new but i mean how they got g = 9.8m/s2? Thank you for trying to help. Link to comment Share on other sites More sharing options...
Decode Posted October 14, 2016 Share Posted October 14, 2016 This is first year for me in physics, So i am completely new but i mean how they got g = 9.8m/s2? Thank you for trying to help. g = 9.8m/s is a constant. There is no calculation (probably is but its irrelevant) as to how that is g. 2 Link to comment Share on other sites More sharing options...
Arjen Posted October 14, 2016 Share Posted October 14, 2016 This is first year for me in physics, So i am completely new but i mean how they got g = 9.8m/s2? Thank you for trying to help. because the gravity on earth pulls with 9.8m per second.. on the moon its 1.6m per second.. on earth its always 9.8 1 Link to comment Share on other sites More sharing options...
progamerz Posted October 14, 2016 Author Share Posted October 14, 2016 g = 9.8m/s is a constant. There is no calculation (probably is but its irrelevant) as to how that is g. because the gravity on earth pulls with 9.8m per second.. on the moon its 1.6m per second.. on earth its always 9.8 Thank you guys very much for the help Request close. 1 Link to comment Share on other sites More sharing options...
Decode Posted October 14, 2016 Share Posted October 14, 2016 Thank you guys very much for the help Request close. If you do have more questions about this, drop me a msg on skype. (Khalidbanihani) 1 Link to comment Share on other sites More sharing options...
