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The displacement of particle is given by y=a +bt +ct^2-dt^4.initial velocity and acceleration?? ans- -b. and 2c respectively..?
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The displacement of particle is given by y=a +bt +ct^2-dt^4.initial ve...
For velocity diff. it and for acceleration double differentiation of displacement is done..
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The displacement of particle is given by y=a +bt +ct^2-dt^4.initial ve...
Given information:

The displacement of a particle is given by the equation y = at + bt^2 + ct^2 - dt^4.

To find:

We need to determine the initial velocity and acceleration of the particle.

Solution:


Step 1: Differentiate the displacement equation to find velocity:

To find the velocity of the particle, we need to differentiate the displacement equation with respect to time (t).

Differentiating the equation y = at + bt^2 + ct^2 - dt^4 with respect to t, we get:

dy/dt = a + 2bt + 2ct - 4dt^3

This represents the velocity of the particle at any given time.

Step 2: Finding initial velocity:

The initial velocity of the particle is the velocity at time t = 0. Substituting t = 0 into the velocity equation, we get:

dy/dt = a + 2b(0) + 2c(0) - 4d(0)^3
dy/dt = a

Therefore, the initial velocity of the particle is a.

Step 3: Differentiate the displacement equation again to find acceleration:

To find the acceleration of the particle, we need to differentiate the displacement equation (y = at + bt^2 + ct^2 - dt^4) again with respect to time (t).

Differentiating the velocity equation (dy/dt = a + 2bt + 2ct - 4dt^3) with respect to t, we get:

d^2y/dt^2 = 2b + 2c - 12dt^2

This represents the acceleration of the particle at any given time.

Step 4: Finding initial acceleration:

The initial acceleration of the particle is the acceleration at time t = 0. Substituting t = 0 into the acceleration equation, we get:

d^2y/dt^2 = 2b + 2c - 12d(0)^2
d^2y/dt^2 = 2b + 2c

Therefore, the initial acceleration of the particle is 2b + 2c.

Final Answer:

The initial velocity of the particle is -b and the initial acceleration is 2c.
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The displacement of particle is given by y=a +bt +ct^2-dt^4.initial velocity and acceleration?? ans- -b. and 2c respectively..?
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