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- Suppose you increase your running speed from 7 m/s to 9 m/s in a period of 2 s. What is
your acceleration?

Sagot :

Step-by-step explanation:

  • Initial velocity (u) = 7 m/s
  • Final velocity (v) = 9 m/s
  • Time taken (t) = 2s

[tex] \dashrightarrow \quad \rm {a = \dfrac{v -u}{t} } \\ [/tex]

  • a denotes acceleration
  • v denotes final velocity
  • u denotes initial velocity
  • t denotes time

[tex] \dashrightarrow \quad \rm {a = \dfrac{9 -7}{2} \; m \: s^{-2}} \\ [/tex]

[tex] \dashrightarrow \quad \rm {a = \dfrac{2}{2} \; m \: s^{-2}} \\ [/tex]

[tex] \dashrightarrow \quad \underline{\boxed{\bf {a = 1 \; m \: s^{-2}}}} \\ [/tex] (Answer)