高中物理题目（原文为英文） 要详细过程！！
Anashtrayslidesacrossatablewithaspeedof0.6m/sandfallsofftheedge.Ifittakes0.4storeacht...
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? 展开
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? 展开
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(1) 0.24m
(2) 116m
(3) 2s , 40m
(4) 4s , 48m
(2) 116m
(3) 2s , 40m
(4) 4s , 48m
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可以求过程吗……QAQ
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好吧，这么简单的物理··········，我写下哈
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