一道简单的英文AP物理题Peter and Josh are skateboarding in a large semicircular halfpipe.Peter starts out from rest at a height h and collides with Josh standing at the bottom.Peter and Josh have about the same mass.After the collision,which
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一道简单的英文AP物理题Peter and Josh are skateboarding in a large semicircular halfpipe.Peter starts out from rest at a height h and collides with Josh standing at the bottom.Peter and Josh have about the same mass.After the collision,which
一道简单的英文AP物理题
Peter and Josh are skateboarding in a large semicircular halfpipe.Peter starts out from rest at a height h and collides with Josh standing at the bottom.Peter and Josh have about the same mass.After the collision,which height will Josh reach?Let's neglect friction and consider the following two extreme cases:
The collision is totally inelastic.
h/25
h/16
h/8
h/4
h/2
h
None of the above.
The collision is elastic.
h/25
h/16
h/8
h/4
h/2
h
None of the above.
Later that day,Peter does the same thing with Fred,who is 4 times heavier than Peter.If the collision is totally inelastic,what height does Fred reach?
h/25
h/16
h/8
h/4
h/2
h
None of the above.
一道简单的英文AP物理题Peter and Josh are skateboarding in a large semicircular halfpipe.Peter starts out from rest at a height h and collides with Josh standing at the bottom.Peter and Josh have about the same mass.After the collision,which
1. 1/4h
2 . 应该是h, 没有只能none of above
3. 1/25h