What is the measure of angle bac?

BAC = 30

Step-by-step explanation:

BAC and CAE are vertical angles, so they are equal

BAC = CAE

x+10 = 2x-10

Subtract x from each side

x-x+10 = 2x-x-10

10 = x-10

Add 10 to each side

10 +10 = x-10+10

20 = x

We want to find BAC

BAC = x+10

         = 20+10

BAC = 30

s = -u²/2a

Step-by-step explanation:

v² = u² + 2as

Where,

v = 0

u is the velocity it was moving with

a = deceleration = Braking force/mass

Therefore,

0 = u² + 2as

s = -u²/2a

This is positive because a is negative