Speed A + Speed B = Speed Combined
Unless they hit each other. Then, under Newton's Third Law, it's
(Speed A + Speed B) / 2 = Combined Collision Force
IE, if two cars hit each other head-on, both going 50mph, it's the same force as a single car hitting a wall at 50mph. (i.e. The impact force does not double; because you have to divide the absorption force of a second vehicle, which cancels out half of the force)
140 mph
100
There is addition of the speed.
140 mph
The combined VELOCITY of two cars that crash will be somewhere between that of the individual cars. In this case, the combined speed will be less than the speed of the car that was moving before the crash.If you know the velocities and the masses, the exact speeds can be calculated using conservation of momentum.
There is not enough information to answer the question.
Yes. If in opposing directions, obviously. But if they were in parallel to each other, they could still touch and damage each others bodies.However, two cars moving with the same velocity cannot collide.
Speed is measured by distance and time, yes. Velocity takes in direction.
The new speed for the combined masses will be one-half the original velocity of the moving spaceship, since the momentum is applied to a mass twice as large.
The driver in the lane that is not blocked. The other driver must wait for a clear lane before proceeding.
Heavy water accumulation on the street/road surface - and - the excessive speed of the vehicles travelling on that road.
Crossover cars serve the purpose of combining the most popular features of passenger vehicles with sport utility vehicles. The combined features of the two aforementioned types of vehicles results in a crossover vehicle which serves the purpose of providing affordable price, reasonable fuel economy, and exceptional comfort.