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05-09-2019
Physics

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A Roller coaster car is moving 19.8 m/s on flat ground when it hits the brakes. It decelerates at -3.77 m/s squared over the next 45.8 m how much time does it take? Please help me. I have been trying for the past hour

A Roller coaster car is moving 198 ms on flat ground when it hits the brakes It decelerates at 377 ms squared over the next 458 m how much time does it take Pl class=

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rupam29roy rupam29roy

09-01-2021

Explanation:

s = ut + 1/2 at^2

45.8 = 0 ×t + 1/2 ×-3.77×t^2

t^2 = 2×458×100/37×10

t = square root 24.2

t = 5sec

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