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"Deceleration" is a decrease in speed, however you are still going in the SAME direction so it is POSITIVE.
"Retardation" is going in the OPPOSITE direction, therefore it is NEGATIVE.
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Class 9 -what is the formulae for finding retardation in physics?
Retardation or deceleration is negative accelaration formula for finding retardation is same as that of accelaration: v-u/t, where v is the final velocity, u is the initial velocity and t is the time taken. eg- a bus is travelling at 20 m/s. Brakes are applied to stop the bus. The total time taken by the bus to stop is 2 s. Find its retardation. ans- v=0; u=20; t=2 accelaration= 0-20/2 a= -10 m's^2 retardation= 10 m/s^2 (because retardation is negative accelaration)
How to calculate retardation?
Retardation = change in vel / time taken
How do you measure or calculate deceleration during a collision?
In a controlled test condition (like crash tests on cars) an accelerometer is used to measure the rate of deceleration. It should be possible to estimate the deceleration following a collision if the speed of the vehicles at the moment of the collision is known. We could do this by measuring the amount the car was crushed/dented during the collision. We know the vehicle decelerated from its starting speed over this distance so we can estimate the average deceleration. I believe there are more sophisticated techniques used by accident investigators. As an aside, in strict physics terminology, slowing down (as well as any other change in velocity) is acceleration, not deceleration however deceleration is often used to imply a reduction in speed in every day English. If you want to get into this further have a look at "Are speed and velocity the same?" and remember that acceleration is also a vector.
How do you find retardation?
Retardation is the opposite of acceleration.It starts from a non zero uniform velocity.For this to happen any velocity (not zero) of a vehicle should go on decreasing.The rate of decreasing may be anything.If it is decreasing then that is retardation.
How can you find the retardation of a curve in a speed time graph?
Calculate the gradient of the curve which will give the acceleration. Change the sign of the answer to convert acceleration into retardation.
What is the difference between deceleration and retardation?
retardation and deceleration in uniform linear motoin, they are same but in projectile motion they not the same
Is retardation positive or negative acceleration?
Retardation or deceleration is negative acceleration. It is opposite to the direction of velocity.
When an object slows it has what acceleration?
Retardation or negative acceleration or deceleration.
What are the two common terms for decreases in velocity?
deacceleration
When an object slows down it has what acceleration?
Retardation or negative acceleration or deceleration.
Which is also called as retardation or deceleration?
Deceleration is a special case of what physicists call "acceleration" - a rate of change of velocity.
Is retardation the opposite to accelaration?
I think the most accurate antonym for acceleration is deceleration.
What does retardation mean in physics?
Retardation means deceleration or the negativity to speed. It's synonyms Disintegrate, Prejudice, Destruct etc. The formula of retardation is V - U/ T where V is the final position U is the initial motion and T is the time taken by object.
An increase of speed during a given interval of time is called negative acceleration?
No, it's only the acceleration. By (-)ve acceleration ,it means retardation or deceleration..
An increase of speed during a given interval of time is called negative acceleration.?
No, it's only the acceleration. By (-)ve acceleration ,it means retardation or deceleration..
Class 9 -what is the formulae for finding retardation in physics?
Retardation or deceleration is negative accelaration formula for finding retardation is same as that of accelaration: v-u/t, where v is the final velocity, u is the initial velocity and t is the time taken. eg- a bus is travelling at 20 m/s. Brakes are applied to stop the bus. The total time taken by the bus to stop is 2 s. Find its retardation. ans- v=0; u=20; t=2 accelaration= 0-20/2 a= -10 m's^2 retardation= 10 m/s^2 (because retardation is negative accelaration)
Where the deceleration of independence and the Bill of Rights the same thing?
No, the Deceleration of Independence and the Bill of Rights are not the same thing because a while after Jefferson wrote the Deceleration of Independence he wrote the Bill of rights!!! :D
