Question

the skid marks left by the decelerating jet-powered car the spirit of america were 9600 m long before it came to a stop at 198 m/s, how long did it take for the car to stop ?

Answer 1

Answer:

97 s

Explanation:

Given:

Δx = 9600 m

v₀ = 198 m/s

v = 0 m/s

Find: t

Δx = ½ (v + v₀) t

9600 m = ½ (0 m/s + 198 m/s) t

t = 97 s

Answer 2

Answer:

Δx = ½ (v + v₀) t

9600 m = ½ (0 m/s + 198 m/s) t

t = 97 s

Explanation: