Modern physics - Kinematics

36

rahul ·2011-06-12 11:57:51

its 50âˆš2 i guess... nd the direction is south west

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rishabh ·2011-06-12 12:13:54

i agree with rahul.
initial velocity = 50 j
final vel. = -50 i

change = -50i - 50 j
magnitude = 50 root 2 ...dir. = south west

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Saahil sud ·2011-06-12 12:41:30

answer written is B

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49

Subhomoy Bakshi ·2011-06-12 13:28:45

50âˆš2 is approximately 70 only..

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Abhishek Das ·2011-06-24 02:41:20

Is it yes it is 70.7 Km/hr but the @ rishab how the direction is south west it is going 90 left it must be in the north east!!!!!wat subhomoy da says????

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Anonymous Yes i also could not get this point
Upvote·0·2017-06-16 18:22:48
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262

Aditya Bhutra ·2011-06-24 02:53:21

change in vel. = final velocity - initial velocity
= v₂ - v₁

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Abhishek Das ·2011-06-25 04:39:15

I change my view the ans. is (C).

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Abhishek Das ·2011-06-25 23:47:26

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rishabh ·2011-06-28 01:30:47

lol. yeah 50 rt.(2) = 70
and @dasaabhishek -50 i - 50 j => south west direction [ in the 3rd quadrant x and y co-ordinate are negative]

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Abhishek Das ·2011-07-02 00:40:05

hmm.......correct.........

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rishabh ·2011-07-24 06:19:27

what doeas "pinked posts" mean ??

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