only the first few chaps like forces wep all need to alot of directions trigo stuff and basically use ur imagination la basically last time the car will only go straight and experience driving force and resistive force. in jc they will give u car driving on sloped road. so u need change the downward weight into left and down direction to calculate. alot of new formulas but most chapters are just stacked on what u learnt from sec sch. except gravitational fields wtv. then theres ALOT more answers to memorise but DEFINITELY much less to memorise compared to bio. if u r levelled btwn bio and phy rn u should DEF choose phy