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2 years ago

14

A jet - powered car called the spirit of America required 9600meters to stop from its highest speed . If the car decelerated at

a rate of -2.0m/s , what was the initial speed of the car

1 answer:

Mazyrski [523]2 years ago

6 0

$v^{2}$ = $u^{2} + 2ar$
0 = u^2 + 2*(-2)*9600
u^2 = 38400
u = 195.96 m/s

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