Two locomotives approach each other on parallel tracks. each has a speed of 95 km per h with respect to the ground. if they are initially 8.5 km apart, how long will it be before they reach each other?

t = 0.045 hr

Explanation:

given,

speed of the car A = 95 Km/h

speed of car B = 95 Km/h

initial distance = 8.5 Km

time = ?

now,

the relative speed between the two vehicle

= 95 - (-95) = 190 Km/h

we have use negative speed because one car is moving opposite to other.

we know,

distance = speed x time

t = 0.045 hr

time taken the car to reach each other is equal to 0.045 hours.

because it says use -2,0,and 2 for x, we can plug those numbers into the equation. y/4=3/4(-2)+2   y/4= -1 1/2 +2 now to get x by itself, we can multiply each side by 4. y=-6+8 which equals y=2 when x=-2. now you can do the same thing with 0 and 2 as x. you get y=8 when x=0 and y=14 when x=2.

x   |   y

-2 |   2

0   |   8

2   |   14