Answer:
48 m
Explanation:
Two trains traveling towards one another on a straight track are 300m apart when the engineers on both trains become aware of the impending Collision and hit their brakes. The eastbound train, initially moving at 97.0 km/h Slows down at 3.50ms^2. The westbound train, initially moving at 127 km/h slows down at 4.20 m/s^2.
The eastbound train
First convert km/h to m/s
(97 × 1000)/3600
97000/3600
26.944444 m/s
As the train is decelerating, final velocity V = 0 and acceleration a will be negative. Using third equation of motion
V^2 = U^2 - 2as
O = 26.944^2 - 2 × 3.5 S
726 = 7S
S = 726/7
S1 = 103.7 m
The westbound train
Convert km/h to m/s
(127×1000)/3600
127000/3600
35.2778 m/s
Using third equation of motion
V^2 = U^2 - 2as
0 = 35.2778^2 - 2 × 4.2 × S
1244.52 = 8.4S
S = 1244.52/8.4
S2 = 148.2 m
S1 + S2 = 103.7 + 148.2 = 251.86
The distance between them once they stop will be
300 - 251.86 = 48.14 m
Therefore, the distance between them once they stop is 48 metres approximately.
<span>B. Analyzing results
</span>Researching is composed of various explorations in utilizing the scientific method in the process. It also, answers any scientific inquiry with the use of scientific method. Research enables and promotes the scientific community at a larger scale. Contributing and collaborating knowledge all-over the people and persons in science. Researches play a big role in everyone’s academic identity because
<span>1. It actively makes the individual scientific in approach to things of curiosity and makes him/her use the knowledge to study and produce results which</span> <span>
2. The scientific society will benefit by this particular study and can work together to better explore and discover. </span><span> </span>
Answer:
71 cm
Explanation:
Every 100 mm is equal to 10 cm. Hope this helps!
Answers:
a) Momentum for Car 1: 
East
Momentum for Car 2:
West
b) Car 2 has the greater momentum
Explanation:
a) The linear momentum 
is given by the following equation:
(1)
Where 
is the mass of the object and 
its velocity.
In this case both cars have a mass of 
but different velocities (
east for car 1 and 
west for car 2).
For Car 1:
(2)
(3)
(4)
For Car 2:
(5)
(6)
(7)
b) Having the result of the lineal momentum for both cars, we know Car 2 has the larger momentum, this can be known because Car 2 has a greater velocity.
So, if momentum is directly proportional to the mass and the velocity of the object, both objects have the same mass but different velocities; the object with greater mass will have the greater momentum.
