Question Number 24814 by Tinkutara last updated on 26/Nov/17
Commented by Tinkutara last updated on 26/Nov/17
Commented by ajfour last updated on 27/Nov/17
$${either}\:{launch},\:{same}\:{amplitude}. \\ $$
Commented by ajfour last updated on 27/Nov/17
$${with}\:{the}\:{downward}\:{launch}\:{it} \\ $$$${will}\:{go}\:{to}\:{the}\:{otherside},\:{will} \\ $$$${have}\:{regained}\:{the}\:{same}\:{speed}, \\ $$$${when}\:{at}\:{height}\:{h}\:{and}\:{the}\:{same} \\ $$$${situation}\:{as}\:{in}\:{upward}\:{launch} \\ $$$${is}\:{there}\:{now}.\:{So}\:{same}\:{amplitude}. \\ $$