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If only external force can change the velocity of a body how can the internal force of the brakes bring a car to rest?
It is not the force of the brakes that is stopping the car but rather external force of friction between tires and the road. Notice that no matter what the force at the brakes is, the car won't stop if there is no friction there(ie. the road is slippery).
This is an excellent question. Consider the NASA space shuttle. It has brakes, yet the brakes work only on the ground - only while the shuttle is landing. Why?
In space, the brakes have nothing to react against. So, as the questioner suspects, the internal forces of the brakes alone are not sufficient to change the velocity of the space shuttle. But once the shuttle lands, and is rolling down the runway, applying the brakes creates friction between the wheels and the runway. And it is the external force of the runway pushing back against the braking wheels that causes the shuttle to slow down.
What else can I help you with?
An organisms ability to maintain stable internal environment in the midst external environmental change is known as what?
its called homeostasis. ;)
What is the rate change in velocity?
The rate of change in velocity is known as acceleration.
How can you change an objects velocity?
To change an object's velocity, you can apply a force in the direction you want it to accelerate. This force can be produced by pushing, pulling, or using any other method of applying force to the object. Additionally, altering the mass of the object or the direction of the force can also change its velocity.
What makes a change in velocity?
A change in velocity can occur due to a change in speed (magnitude of velocity) or direction of an object's motion. This change is influenced by forces acting on the object, such as acceleration or deceleration.
Are velocity and acceleration both rates of change?
Yes, velocity is the rate of change of an object's displacement over time, while acceleration is the rate of change of an object's velocity over time. Velocity indicates how fast an object's position changes, while acceleration describes how the velocity of an object changes over time.
Is a bug changing its color upon a predator a internal or external change?
Both, for the bug to exhibit an external change (its color), there must first be an internal change that triggers the color change (its color). Thus, the internal change facilitates the external change. The predator is an external factor that causes an internal reaction (maybe it's fear) in the bug, that internal reaction then triggers an external factor which is the change in color. Just a personal opinion.
Can forces change the way an object moves?
No, internal forces can't change the velocity of a body. Because if we want to change the velocity of a body we must apply a external force or an unbalanced force. Ex:- if we travel in a bus , if we apply some forces inside the bus the velocity of the bus can't change.so internal forces can not change the velocity of body ---- ----
Velocity changes when?
Velocity of any body changes due to external force being put in that body to make it stop or to make it move faster, for example the velocity of a car changes when you put on accelerator and it slows down when u put on brakes. therefore change in velocity is due to Acceleration and Retardation (Deceleration).
When changing?
Velocity of any body changes due to external force being put in that body to make it stop or to make it move faster, for example the velocity of a car changes when you put on accelerator and it slows down when u put on brakes. therefore change in velocity is due to Acceleration and Retardation (Deceleration).
What are organisms that change their internal conditions with their External environment?
exothermal
Are long neck turtles internal or external fertilisation?
external because they can change over time.
What are two of the ways that the velocity of a car can change?
The velocity of a car can change by increasing its speed, such as accelerating when pressing the gas pedal, or by decreasing its speed, such as decelerating when applying the brakes.
What 2 factors can cause a change in velocity?
Velocity is said to have changed when either the speed or the direction of motion changes. There are myriads of things that can cause it, including jets, rubber bands, gravity, and friction.
Are earthquakes internal or external forces of change?
Earthquakes are internal forces of change caused by tectonic plate movement and stress release along faults within the Earth's crust. They are not considered external forces as they originate from within the Earth.
What is the stimulus material in drama?
Is a dectable change in the internal or external environment
How does external and internal environment change the organisation brought by IT developments?
yes.
What is a change in external or internal environment in an organism?
It takes place due to StimulusStimulus.
