AP and TS EAMCET Medical Model Paper 7

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Question : 87 of 158

Marks: +1, -0

Displacements in the X Y - plane of two bodies A and B as functions of time 't’ are given by relations SA=10t

^

i

+20t2

^

j

and SB=(100−2t)

^

i

+10t2

^

j

then initial acceleration of B relative to A is

20
^
j
-30
^
i
20
^
i
- 20
^
j

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