来自宋煜的问题
一道物理英文题Thespeedofabulletasittravelsdownthebarrelofarifletowardtheopeningisgivenbyv=(–5.00×107)t2+(3.00×105)t,wherevisinmeterspersecondandtisinseconds.Theaccelerationofthebulletjustasitl
一道物理英文题
Thespeedofabulletasittravelsdownthebarrelofarifletowardtheopeningisgivenbyv=(–5.00×107)t2+(3.00×105)t,wherevisinmeterspersecondandtisinseconds.Theaccelerationofthebulletjustasitleavesthebarreliszero.
(a)Determinetheaccelerationandpositionofthebulletasafunctionoftimewhenthebulletisinthebarrel.
(b)Determinethelengthoftimethebulletisaccelerated.
(c)Findthespeedatwhichthebulletleavesthebarrel.
(d)Whatisthelengthofthebarrel?
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2020-06-03 17:58