Recent content by Falley

Thanks a lot,cleared up a lot of things for me

Example 3,the rocket

But for the same question,part a),b)c) a n b used -9.8 while c used 9.8

So,while learning mechanics,I found that most questions use g=-9.8 ,but when calculating the velocity the instant a rocket touches the ground,the solution instead used g=9.8,which is very confusing.Other questions of similar workings used g=-9.8,anybody care to help?