Answer:
Car lights are designed for two functions - to assist the driver and to communicate with other drivers. Accidents are more likely to occur when motorists fail to practice proper use of their lights.
Car lights include: Headlights. There are two types of headlights—low beam and high beam. These lights allow the driver to see the roadway in the dark, while also signaling to other motorists that a car is present.
Most drivers simply get into the car, start it and doesn't even think of lighting or the fact that it can provide security. But most of the light is about security and communications. The headlights and tail lamps ensure that other drivers see you, even in reduced visibility. This is crucial to avoid accidents.
Freezing point is the temperature at which a substance undergoes a phase transition from liquid to solid state. Water converts from liquid state to solid ice at a temperature of 
.
Mass is the amount of matter contained in a substance. The SI unit of mass is kilogram. 1 kilogram is equal to 1000 g. One kilogram is defined as the mass of one cubic decimeter of water at the freezing point of water.
Let the person at the Left be A and Person at the right be B
then the force by person A will be
Pulling force + Frictional Force = the force by the person
which is,
20N+11N=29N
then the force by person B will be,
25N+5N=30N
1) the net force will be 30N-29N=1N
2) the force are unbalanced as the net force acting on the object is not zero.
3) the rope will move towards the right as there is a net force of 1N towards the right.
