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Why do cars need petrol if uniform motion requires no resultant force?
Wiki User
∙ 14y ago
A moving object always experiences drag, a unbalanced force slowing it down. Thus it needs a force provided by the engine to counteract this force. The engine doesn't go without petrol (or some other appropriate fuel) so a car needs that as well.
Wiki User
∙ 14y ago
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How do the motor turns into motion?
Using petrol
Why do mechanical systems need an external energy source in order to maintain motion?
Because they need a source of power for example a car needs petrol
The density of petrol is 0.8gcm If the mass of petrol in a can is 4kg how many liters of petrol are there in the can?
The density of petrol is 0.8g cm3 which is the same as 800g per litre The mass of petrol supplied is 4Kg = 4000 grams =4000/0.8 = 5000cm3 5000cm3 = 5 litres of petrol. Answered by the longfield BTEC boys.
What are the bad conductors covering petrol?
the bad conductors of petrol is sand.
What causes electric charge to build up in petrol tanker?
The flow of petrol
How do the motor turns into motion?
Using petrol
What is the purpose of the crankshaft in a petrol engine?
The crankshaft converts the linear motion of the piston into rotation of the crankshaft.
1 word problem involving direct proportion example?
A car requires 15 liters of petrol to travel 200 km.How much petrol is needed to travel 120 km?
What makes hybrid cars and what are they?
A hybrid car is a car that can automatically change from an electrical to a petrol motor whilst in motion. The car's electrical batteries are often charged by the revolutions of the wheels whilst in motion
How do you replace petrol filter opel utility 1.4?
Replacing a gas or petrol filter in recent vehicles such as the Opel Utility 1.4 requires removing the gas tank. This is best left to professionals due to the complexity of the task.
Can you use water in engine instead of petrol?
You cannot use water in an engine instead of petrol. The internal combustion engine of a car or truck requires the ignition of gases in order to create power. This doesn't happen with water.
Do cars use DC motors to move wheels?
No they do not. The conventional car uses a petrol engine to move the motion wheels. Some hybrids use a combination of petrol engines and AC motors. While other use just AC motors.
What is the noun for petrol?
Some collective nouns to use for petrol are a tank of petrol, a can of petrol, a container of petrol.
Why you cannot convert a petrol engine into a diesel engine?
Diesel engines fire on compression rather than spark. This requires that a diesel engine be made much stronger than a petrol engine. All internal components are made to much stronger specifications. A petrol engine could not handle the higher compression and would self destruct.
What part of a car burns the gas?
The spark plugs ignite the petrol vapour to produce an explosion that forces the pistons down and this is turned into motion by the cranck shaft.
What is the collective noun for petrol?
Some collective nouns to use for petrol are a tank of petrol, a can of petrol, a container of petrol.
What are the causes of a 1974 Mercedes 230 car backfiring?
it is mostly the timing off or the carburater needs adjusted.or the petrol filter requires replacing [at fuel pump]
