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Tathagat Nawadia Grade: 11
        

Dear Sir,
I have an enquiry about a question from the chapter motion in a straight line from class 11.Actually i couldnt see any link to ask questions from you on your site so i thought you to contact you this way.
QUESTION
The postion of a particle moving on the x-axis is given by
x=7.8 + 9.2t  - 2.1t^3

with x in meteres and t in seconds . What is its velocity at t=3.5s ? Is the velocity constant or is it continyously changing ?

7 years ago

Answers : (1)

Aditya Nijampurkar
16 Points
										

bro just differentiate the eq


i.e. dx/dt


u will get the answer. still if u hav query abt this mail me on adityamax2007@rediffmail.com


thanks

7 years ago
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