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The displacement of a particle is given as function of time as x = t^2 + 2t. How much displacement is covered in the first 5 seconds?

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in Physics – Class 11 by (74.2k points)
The displacement of a particle is given as function of time as x = t^2 + 2t. How much displacement is covered in the first 5 seconds?

(a) 5 units

(b) 35 units

(c) 40 units

(d) 0 units

I had been asked this question in an internship interview.

This intriguing question comes from Straight Line Motion in division Motion in a Straight Line of Physics – Class 11

1 Answer

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Best answer
The correct option is (b) 35 units

Explanation: The displacement covered in the first five seconds can be obtained by putting t = 5 in the equation. Therefore, x = 5^5 + 2(5) = 25 + 10 = 35. Hence the answer is 35 units.

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