hi guys, Im not a science student but wanted help in understanding a few fundamentals. Here is where i have learnt till please correct me if i am wrong. is it correct if i state, "If you can lift 74.6kgs off the ground to a height of 1m in 1sec you have power = 1hp?" i say that cause i read 10N= 102gms x (9.8m/s^2) which is apprx. 1kg. so, 10Nm done in 1 sec = 1Watt. and 746Watts = 1 Hp. so i am understanding the above idea to do with lifting a body of mass from off the ground... NOW... but what if i have a 10kg car, how fast must i be able to push it to have 1hp? Am i suppose to be calculating hp from the speed i generate(velocity)... or calculating hp from its acceleration achieved?? I am basically trying to understand the link between Mass, Force, Hp, Acceleration, Speed. We can ignore drag or friction thanx, for the help guys!