Physics MCQ doubt
https://dynamicpapers.com/wp-content/uploads/2015/09/9702_s14_qp_12.pdf
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Oakenari
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Attachment not found
Oakenari
(edited 4 years ago)
Original post by Oakenari
https://dynamicpapers.com/wp-content/uploads/2015/09/9702_s14_qp_12.pdf
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Oakenari
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Oakenari
Can you show your working since you said that you were not getting it?
Original post by Oakenari
https://dynamicpapers.com/wp-content/uploads/2015/09/9702_s14_qp_12.pdf
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Oakenari
Hi guys.
Having a doubt on method of q7. Answer is C but I'm not getting it. Please could you help.
Thanks.
Attachment not found
Oakenari
I would outline the steps for you and leave the calculations for you do.
Use conservation of linear momentum to find the velocity of the combined trains after the collision.
The kinetic energy lost = Initial KE – Final KE.
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