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Determine the change in velocity of a car that starts at rest and has a final velocity of 20 meter second north?
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∙ 14y ago
The change in velocity is 20 meters per second north. ( ? ? ? )
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∙ 14y ago
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Distinguish between velocity and acceration. Use an example to demonstrate your answer?
Velocity - rate of change of position Acceleration - change in velocity over time A car moving south at 20 m/s south has a constant velocity of 20 m/s southward. Let's assume this car starts to accelerate at 1 m/s2. This means that each and every second, the car's velocity will increase by 1 m/s.
The impulse given to a ball with mass of 4 kg is 16 Nsec If the ball starts from rest what is its final velocity?
An impulse is simply a change of momentum, and momentum is defined as mass x velocity; so you just divide the momentum by the mass to get the velocity. Note about the units: newton x second is the same as kilogram x meter/second2.
What is the rate at which an object changes velocity is called?
It is acceleration. Recall the accelerator hold in case of two wheeler and accelerator pedal in case of four wheeler. After the engine is started then we turn the throttle and vehicle starts moving from rest and soon the velocity goes on increasing. The more we turn in case of two wheeler and the more we press the pedal in case of four wheeler, the speed gets increased so quickly. So 'rate of' phrase is used to mean any change with respect to time or change happening in one second. Rate of displacement is velocity Rate of change in velocity is acceleration Rate of doing work is power Rate of flow of charge is electric current.
Can a body have zero velocity and still be accelerating?
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
The rate of change of an objects position is?
Acceleration occurs when the velocity of an object changes. Velocity is the speed and direction of an object. Newton's Second Law of Motion defines what happens when a force acts on an object. The object accelerates in the direction in which the force is acting. A force acting on a stationery object starts it moving. A force acting on a moving object will speed it up, slow it down, or change the direction in which it is movingDefinition of deceleration: (physics) a rate of decrease in velocityDefinition of acceleration: (physics) a rate of increase of velocityProps to Google :)
A car starts from rest and travels a distance of 100 m in 20 seconds with a constant acceleration The velocity of the car is at the end of the 20 second interval is?
velocity=5 meters/sec Velocity=change in distance/change in time velocity=m/s change in distance=meters change in time=sec v=x/t v=100m/20s v=5m/s
Distinguish between velocity and acceration. Use an example to demonstrate your answer?
Velocity - rate of change of position Acceleration - change in velocity over time A car moving south at 20 m/s south has a constant velocity of 20 m/s southward. Let's assume this car starts to accelerate at 1 m/s2. This means that each and every second, the car's velocity will increase by 1 m/s.
What is the acceleration of an object that starts stopped and after 5 seconds is going 25mm per hour?
the acceleration is increasing speed Acceleration = velocity change / time velocity change = 0 to 25 mm/hr = 25 mm/hr time = 5 seconds therefore acceleration = 25/5 mm/hr per second = 5 mm per hour per second.
The impulse given to a ball with mass of 4 kg is 16 Nsec If the ball starts from rest what is its final velocity?
An impulse is simply a change of momentum, and momentum is defined as mass x velocity; so you just divide the momentum by the mass to get the velocity. Note about the units: newton x second is the same as kilogram x meter/second2.
If an object starts to accelerate?
If an object moved with constant acceleration it's velocity must ?
What is the rate at which an object changes velocity is called?
It is acceleration. Recall the accelerator hold in case of two wheeler and accelerator pedal in case of four wheeler. After the engine is started then we turn the throttle and vehicle starts moving from rest and soon the velocity goes on increasing. The more we turn in case of two wheeler and the more we press the pedal in case of four wheeler, the speed gets increased so quickly. So 'rate of' phrase is used to mean any change with respect to time or change happening in one second. Rate of displacement is velocity Rate of change in velocity is acceleration Rate of doing work is power Rate of flow of charge is electric current.
What is the definition of final velocity?
Final velocity is the your last velocity traveled. Example if you travel 50m/s your final velocity is 50m/s because its the last velocity traveled, 0m/s is the initial velocity. Its not your total velocity because if u start running at 5m/s then accelerated 25m/s, your final velocity is NOT 30m/s. It is 25m/s. Also, your velocity change is 20m/s(25-5).
Can a body have zero velocity and still be accelerating?
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
The rate of change of an objects position is?
Acceleration occurs when the velocity of an object changes. Velocity is the speed and direction of an object. Newton's Second Law of Motion defines what happens when a force acts on an object. The object accelerates in the direction in which the force is acting. A force acting on a stationery object starts it moving. A force acting on a moving object will speed it up, slow it down, or change the direction in which it is movingDefinition of deceleration: (physics) a rate of decrease in velocityDefinition of acceleration: (physics) a rate of increase of velocityProps to Google :)
Is it possible for two objects to ever have the same velocity but different accelerations?
Yes. You could have two objects with the same final velocity (momentum, if they have mass), but having each one accelerated differently. Imagine object A starts from 5 m/s, and is accelerated over 1 second with acceleration of 20 m/s2 to attain a final velocity of 25 m/s. Now, imagine object B starts from 15 m/s, and gets an acceleration over 1 second of 10 m/s2 to attain the final velocity of 25 m/s. Both end up with the same velocity, but had different accelerations.
What is a physical science term that starts with v?
Velocity.
What is a word that starts with v that means speed?
velocity?
