You are wrong on the ke gpe and maximum height questions Mass is measured in kg not g Oh no you've lost 7marks
First of all; Just to make things clear mass was 0.05kg and when working out kinetic energy units stay, Kg, m/s, J. Okay secondly it's 144x0.05x0.5 = 3.6 j.
I'm pretty sure we are right. But I'm wondering the AQA is not careful when asking such questions since it's logically impossible to find the 'point of maximum' on a changing velocity
If you used 3600 joules to calculate the next question, you would have the rocket launching kilometres into the atmosphere rather than a more appropriate 7.2m
I'm pretty sure we are right. But I'm wondering the AQA is not careful when asking such questions since it's logically impossible to find the 'point of maximum' on a changing velocity
How did you get 22.5 for the velocity time-graph, it was just Speed= d/t, the maximum distance reached was 170 and it took 10 seconds, so 170/10 came out as 17m/s.