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The distance s feet travelled by a parti...

The distance `s` feet travelled by a particle in time `t` seconds is given by `s=t^3-6t^2-4t-8`. It's acceleration vanishes at time `t` =

A

2

B

3

C

4

D

1

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)
  1. A particle is moving along a line according to the law s=t^3-3t^2+5. T...

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  2. A particle is moving in a straight line with the relation between the ...

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  3. The distance s feet travelled by a particle in time t seconds is given...

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  4. A stone is thrown vertically up and the height s reached in time t is ...

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  5. A stone thrown upwards, has its equation of motion s=490t-4.9t^2. The ...

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  6. A stone is projected vertically upwards with an intial velocity 112 ft...

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  7. A stone projected vertically upward moves according to the law s=48t-1...

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  8. A stone is thrown vertically up and the height s reached in time t is ...

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  9. The displacement of a body of mass 100kg in a retilinear motion is giv...

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  10. A car starts from rest and attains the speed of 10 km/hr repectively a...

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  11. A particle moves on a line according to the law s=at^2+bt+c. If the di...

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  12. The point pis moving with uniform velocity v along a straight line AB....

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  13. If the rate of decrease of x^2/2-2x+5 is twice the decrease of x, then...

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  14. If the rate of change in y=2x^3+3x^2-30x+7 is 6 times the rate of chan...

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  15. At the point (2, 5) on the curve y=x^3-2x+1 the gradient of the curve ...

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  16. The point on the parabola x^2=8y for which the abscissa and ordinate c...

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  17. The point on the parabola y^2=4x for which the abscissa and ordinate c...

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  18. A point on the parabola y^2=18x at which the ordinate increases at twi...

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  19. A particle moves along the curve y=x^2+2x. Then the point on the curve...

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  20. The point on the circle x^2+y^2=2 at which the abscissa and ordinate i...

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