Jazzbenedictidn
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a female dragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. she moved in a straight line and traveled from the starting line to the finish line in 8.0 sec. what was the acceleration of the female dragster


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Sagot :

Avcerelidn

ACCELERATION

Problem:

» A female dragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. she moved in a straight line and traveled from the starting line to the finish line in 8.0 sec. What was the acceleration of the female dragster?

Answer:

  • [tex] \color{hotpink} \bold{7.5 \:m/s² } \\ [/tex]

— — — — — — — — — —

Formula:

  • [tex] \underline{ \boxed{ \tt a = \frac{∆v - u}{t} }}[/tex]

where,

  • a is the acceleration in m/s²
  • v is the final velocity in m/s
  • u is the initial velocity
  • t is the time in seconds

Solution:

Substitute the given final velocity and time to the formula in order to get the answer.

- Since there's no initial velocity, then its value is zero.

  • [tex]\tt a = \frac{∆v - u}{t} \\ [/tex]

  • [tex]\tt a = \frac{60- 0}{8.0} \\ [/tex]

  • [tex]\tt a = \frac{60}{8} \\ [/tex]

  • [tex]\tt a = \underline{ \boxed{ \blue{ \tt 7.5 \: m/s²}}}[/tex]

Hence, the acceleration of the female dragster is 7.5 m/s².

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