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A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its
speed is 5 m/s. Then, 4 seconds later, at the bottom of the slope, its speed is 24 m/s. What is its
average acceleration? (show formula, work and units)

Respuesta :

skyluke89

The average acceleration of the cart is [tex]4.75 m/s^2[/tex]

Explanation:

The acceleration of an object is given by

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

where

v is the final velocity of the object

u is the initial velocity

t is the time elapsed

For the roller coaster cart in the problem, we have:

u = 5 m/s is the initial velocity

v = 24 m/s is the final velocity

t = 4 s is the time elapsed

Solving the equation, we find the acceleration:

[tex]a=\frac{24-5}{4}=4.75 m/s^2[/tex]

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