SATHEE: Motion in a Straight Line

Motion in a Straight Line - Result Question 26

27. The displacement of a particle varies with time (t) as: $s = a t^{2} - b t^{3}$ . The acceleration of the particle will be zero at time $t$ equal to [1997]

(a) $\frac{a}{b}$

(b) $\frac{a}{3 b}$

(d) $\frac{2 a}{3 b}$

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Answer:

Correct Answer: 27. (b)

Solution:

(b) distance, $s = a t^{2} - b t^{3}$

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Motion in a Straight Line - Result Question 26

27. The displacement of a particle varies with time (t) as: s=at2−bt3. The acceleration of the particle will be zero at time t equal to [1997]

Answer:

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27. The displacement of a particle varies with time (t) as: $s = a t^{2} - b t^{3}$ . The acceleration of the particle will be zero at time $t$ equal to [1997]