Answer:
125÷2= 62.5 is your average speed. If the train was resting it's not moving your going nowhere . If the train is traveling at constant speed in a straight line it's speed will increase going through mountains will slow it down. if the train is coming to a braking force its speed will decrease
Answer:
12 N
Explanation:
Use Newton's second law:
∑F = ma
F = (2.4 kg + 1.3 kg) (3.2 m/s²)
F = 11.84 N
Rounded to two significant figures, the force is 12 N.
Pretty sure it is B.
Because inertia is a tendency to do nothing or remain unchanged.
Answer:
1
2
3
Explanation:
From the question we are told that
The speed of the car is 
The length of the ramp is 
The constant velocity of the traffic 
Generally the acceleration of the car is mathematically represented as
Here u is equal to zero given that the car started from rest so
=>
Generally the time taken is mathematically represented as
=> 
=>
The distance traveled by the traffic is mathematically represented as
Here a is zero given that the traffic was moving at constant speed
=> 
=>
Since it's so late, and it's way past my bedtime, and I'm tired and hungry,
and I still have real work to do, and I don't think you're really a legitimate
asker of Brainly questions anyway, I'm going to do something that's against
my principles and I almost never do. I'm going to violate my own personal
Prime Directive, and give you the answer without any explanation of where
it comes from.
Ready ?
Here goes:
The effective resistance between points 'A' and 'B' is (2 and 2/3) Ω .
