My sister-in-lawâs Mitsubushi Lancer GTS has a braking distance from 60 mi.h-1 to 0 mi.h-1 of 115 feet.

What is its rate of acceleration

 

 

needs to BE IN SI units

 

 

i would appericate it if someone helped me :/

0 (final velocity) = 60 squared (initial velocity) + 2a (acceleration) times 115 (distance)

0 = 3600 + 230a

a = -3600/230

=-20

i don't know how you're nutty units work but that's how you do it.

THANK YOU SO MUCH

 

i

Just writing it down won't help you at all, just look at it and analyze what he did there and it will be more beneficial for you (especially for tests, quizzes, etc.)

 

But yeah anyway this is probably going to get locked since this has been finished in just two posts, lol.

This thread is now : Awesome Physics formula sheets

 

0 (final velocity) = 60 squared (initial velocity) + 2a (acceleration) times 115 (distance)

0 = 3600 + 230a

a = -3600/230

=-20

i don't know how you're nutty units work but that's how you do it.

 

Well the question hasn't been fully answered so I guess I'll jump in.

 

There isn't enough information to answer the question unless it tells you it has a constant acceleration.

 

Anyway, the formula you need to apply is (final velocity)^2 = (initial velocity)^2 + 2(acceleration)(displacement)

 

But of course, you'd have to convert your units first.

 

1 mile = 1609.344 meters = 5280 feet

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