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stich3
1 month ago
9

On a foggy day, you are driving at 70 mph and Granny is driving at 50 mph. As you try to pass her, you both see an overturned tr

uck and simultaneously slam on your brakes. Assume that both vehicles are identical and that Granny stops just before the truck. Approximately how fast are you traveling when you hit the truck?
Physics
1 answer:
Sav [3.1K]1 month ago
5 0
Answer: 20 mph

Explanation:

Granny decelerated from 50 mph;Her rate of deceleration isa = 50 - 0 = 50m/hr^2. This also indicates the deceleration experienced by you (as both vehicles are the same), therefore, your final speed upon collision with the truck becomes50 = 70 - v

V = 70 - 50 = 20 mph.

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