An ashtray slides across a table with a speed of 0.6m/s and
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An ashtray slides across a table with a speed of 0.6m/s and falls off the edge.If it takes 0.4s to reach the floor,how far from the edge of the table does it land?
A car drives off a vertical cliff at a speed of 29m/s (60mph).If it takes 4s for it to hit the ground,how far from the base of the cliff does it land?
A tennis ball is hit with a vertical speed of 10m/s and a horizontal speed of 20m/s.How long will the ball remain in the air?How far will it travel horizontally during this time?
If a baseball is hit with a vertical speed of 20m/s and a horizontal speed of 12m/s ,how long will the ball remain in the air?How far will it go?
(1) 0.24m
(2) 116m
(3) 2s ,40m
(4) 4s ,48m
再问: 可以求过程吗……QAQ
再答: 好吧,这么简单的物理··········,我写下哈
再答:
再答: 就是这样
(2) 116m
(3) 2s ,40m
(4) 4s ,48m
再问: 可以求过程吗……QAQ
再答: 好吧,这么简单的物理··········,我写下哈
再答:
再答: 就是这样
An ashtray slides across a table with a speed of 0.6m/s and
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