The relation between time t and distance x is t=ax^2+bx where a and b are constants.then the acceleration will be ??
Aakriti Sinha , 11 Years ago
Grade 12
9 Answers
jaymin prajapati
Last Activity: 11 Years ago
if you differesiate 1=2ax dx/dt+b dx/dt. then you common dx/dt.so your equation will be made1/(2ax+b) =v.then again differensiate.A = 2av(-1)/(2ax+b)^2
v^2 =1/(2ax+b)^2.put upper equation .you can get answer -2a v^3
Vikas TU
Last Activity: 11 Years ago
ax2+bx=t
Acceleration is double differntiation or derivative for the relation displacement and time given:
thus, dx/dt => (2ax + b )dx = dt
now dv/dt = 2a thus, acc. is ''2a''
plz approve!
JAYANT ARORA
Last Activity: 11 Years ago
Just do dx/dt , you will get v then repeat the step by doing dv/dt , you will get acceleration.
dx/dt = 2ax + b
dv/dt = 2a + 0 = 2a
that''s the answer.
Utkarsh Verma
Last Activity: 11 Years ago
A = dv/dt = d2x/dt2
where A is the acceleration.
By finding the second derivative of the given expression, we will find the acceleration.
t = ax2 + bx
1 = 2ax dx/dt + b dx/dt
dx/dt = 1/(2ax+b)
d2x/dt2 = -2a/(2ax+b)2
A = d2x/dt2 = -2a/(2ax+b)2
Prajwal kr
Last Activity: 11 Years ago
Differentiating with respect to time:
1=2ax(dx/dt) + b(dx/dt)
=> v=1/(2ax + b)
=>a=0.(Differentiating wrt time, no t in RHS)
Therfore, a=0.
vivek kumar
Last Activity: 11 Years ago
2a
vishal ojha
Last Activity: 11 Years ago
dx/dt = 2ax + b
dv/dt = 2a + 0 = 2a
plz approve..!!
SOURAV MISHRA
Last Activity: 11 Years ago
the given expression is a quadratic in x.
to get the acceleration we need to find x as a function of t.
solving the quadratic gives x = [{b2 + 4at}1/2 - b]/2a .
differentiating twice with respect to t we get the acceleration as -2a*{b2 + 4at}-3/2.
Devanshu
Last Activity: 7 Years ago
dt/dx = 2ax +b dx/dt = 1/2ax+bV=1/2ax+b. .....(I)again differentiate,A=2av(-1)/(2ax+b)^2Put value of v from. eq 1 Final answer : -2av^3
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