Final answer:
No, the statement is false. The crankshaft in a car does not rotate at a constant speed of 3000 rpm.
Step-by-step explanation:
No, the statement is false. The crankshaft in a car does not rotate at a constant speed of 3000 rpm. The speed of rotation of the crankshaft can vary depending on the engine and its current operating conditions.
The crankshaft in a car engine is responsible for converting the linear motion of the pistons into rotational motion, which ultimately drives the wheels of the car. The speed of rotation of the crankshaft is determined by the engine's RPM (revolutions per minute).
For example, at idle, a car's engine may have a crankshaft speed of around 800 to 1000 rpm, while at high speeds or under heavy load, the crankshaft speed can go up to several thousand rpm.
Therefore, 3000 rpm may be a possible speed for the crankshaft in certain situations, but it is not a constant speed.