[填空题]
(a) If the human body could convert a candy baefr:ptj t7zo)0za,h )r dipg+g5fhj5u:f kdt5gcm450z7g hi 1d o rectly into work, how high could an 82-kg manfp5 ho 5:1gkd55imgtuhg z 4fd7+0cjg climb a ladder if he were fueled by one bar (=1000kJ) m
(b) If the man then jumped off the ladder, what will be his speed when he reaches the bottom? m/s
