Dizzy is speeding along at 22.8 m/s as she approaches the level section of track near the loading dock of the whizzer roller coaster ride. a braking system abruptly brings the 328-kg car (rider mass included) to a speed of 2.9 m/s over a distance of 5.55 meters. determine the braking force applied to dizzy's car.

Explanation:

The following parameters are given

initial speed u = 22.8 m/s

final speed v = 2.9 m/s

distance s = 5.55 m

mass of car m = 328 kg

deceleration a= ??

Using Newton's third equation of motion

Here, we chose -a since the car is decelerating (negative acceleration)

Hence

Solving the equation, we obtain a = 46.074

Hence the braking force = mass of car * deceleration

= 328 * 46.074

=

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