Physics
When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ?
Four times
Two times
Half
One-fourth
Four times
Brake force, also known as Brake Power, is a measure of braking power of a vehicle. Suppose a car whose mass is โxโ and is braked from a speed of y km/hr to come to halt at a uniform retardation in z min. If the speed of the car is doubled in the same distance, then the braking force required to stop the car is four times the original speed i.e. โ4vโ. Note that all the parameters remain to be same.
Four times Brake force, also known as Brake Power, is a measure of braking power of a vehicle. Suppose a car whose mass is โxโ and is braked from a speed of y km/hr to come to halt at a uniform retardation in z min. If the speed of the car is doubled in the same distance, then the braking force required to stop the car is four times the original speed i.e. โ4vโ. Note that all the parameters remain to be same.
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