no it does not violate the law of conservation of energy as energy is not lost/destroyed but transferred to the brakes of the truck.
There is not enough information to answer the question. The answer depends onis the object travelling at constant velocity?is the acceleration constant?If it is an object travelling with constant acceleration, which three of the following four variables are knows: initaial velocity, final velocity, acceleration and time.
(v1 + v2)/2
No, the car donot have same velocity.
It depends on what information you have. Also, velocity can be negative - it just means that the object is travelling in the direction opposite to the positive direction for the velocity vector.
It depends upon the velocity with which the object is travelling.... Higher the velocity, higher will be the moment of inertia.....
11 hours travelling 60mph or 6.6 hours travelling 100mph ------------------------------------- Answer: time= distance divided by velocity
The velocity of light (and other electromagnetic waves) depends on the medium through which it is travelling.
^velocity* Consider an object that is travelling south at 10m/s. It accelerates north until it is travelling 10m/s. If we define south as negative, then it accelerates from -10m/s to 10m/s. -10 < 0 < 10, hence, it is travelling at 0m/s at some point.
The relationship between velocity before and after impact depends on the conservation of momentum and energy. In an elastic collision, the total momentum and total kinetic energy is conserved, so the velocity after impact can be calculated using these conservation principles. In an inelastic collision, some kinetic energy is lost during impact, so the velocity after impact will be less than the velocity before impact.
That the component of the velocity towards or away from the origin is zero. You can infer nothing at all about its overall velocity since it could be travelling in a transverse direction at any velocity.
An object travelling at a velocity close to the speed of light had a higher mass than when at rest.
Velocity can be a positive or a negative because velocity is a vector, which means it is also affected by direction. This that if one car is going +10 m/s and another is travelling at -10 m/s, this means that they are travelling the same speed in opposite directions.