The speed of student is 12 m/s. And option (D) is correct.
Given data:
The distance covered by the student is, d = 120 m.
The time taken to cover the distance is, t = 10 s.
The speed of a body is defined as the distance covered by the body per unit time. The expression for the speed is given as,
[tex]v = \dfrac{d}{t}[/tex]
Here, v is the speed of student.
Solving as,
[tex]v = \dfrac{120}{10}\\\\v= 12 \;\rm m/s[/tex]
Thus, we can conclude that the speed of student is 12 m/s. And option (D) is correct.
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