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anshu dutta Grade:
        

1837_15880_p6.JPG

6 years ago

Answers : (2)

PIYUSH AGRAWAL
31 Points
										

a. x=mt2+c


v=dx/dt=2mt


a=dv/dt=2m=const.


so, 1,4 are correct.


 


b. x=mt+c


v=dx/dt=m=const.


a=dv/dt=o


so, 3,5 are correct.


 


c. v2=mx+c


or, v=(mx+c)1/2


a=dv/dt={m(mx+c)-1/2/2}(dx/dt)={m(mx+c)-1/2/2}v=m/2=constant.


so, 1,4 are correct.


 


d. v=mx+c


a=dv/dt=mdx/dt=mv=m(mx+c)


so, 2,4 are correct.


 


to understand the above method, you must have knowledge of deifferntiation and straight line eqn.


 


for more, you may ask---


piyush agrawal


class 12 student


6 years ago
gOlU g3n|[0]uS
42 Points
										

answer is     1       A,C


                  2        D


                  3        B


                  4        A,C


                  5        B                                     if iam wrong then tell me ans

6 years ago
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