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A paper airplane is thrown horizontally with a velocity of 20 mph. The plane is in the air for 7.63 s before coming to a standstill on the ground. What is the acceleration of the plane?

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MathPhys

Answer:

-1.17 m/s²

Explanation:

Given:

vâ‚€ = 20 mph = 8.94 m/s

v = 0 m/s

t = 7.63 s

Find: a

v = at + vâ‚€

0 m/s = a (7.63 s) + 8.94 m/s

a = -1.17 m/s²

Cricetus

The acceleration of the plane will be:

"-1.17 m/s²".

Acceleration and Velocity

According to the question,

Velocity, vâ‚€ = 20 mph or,

                   = 8.94 m/s

and,

                v = 0 m/s

Time, t = 7.63 s

We know the relation,

→ v = at + v₀

By substituting the values,

  0 = a × 7.63 + 8.94

7.63a = - 8.94

      a = -[tex]\frac{8.94}{7.63}[/tex]

         = - 1.17 m/s²  

Thus the response above is correct.

Find out more information about velocity here:

https://brainly.com/question/742413

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