Answer:
Explanation:
In this case the kinetic energy of the bike is converted into the heat energy between the area of contact of tyre and the road. This happens due to the work done by the frictional force between the surface to stop the relative motion between the road and the tyre.
Given:
- normal force on the rear tyre,
(as given in the question that the rear tyre supports half the combined weight of the bike and the rider.)
- distance dragged while stopping the tyre,
- coefficient of kinetic friction between the surfaces,
<u>Now, frictional force between the surfaces:</u>
<u>Now, the work done by the kinetic friction:</u>
According to the energy conservation this amount of energy is converted into thermal energy between the surfaces in contact, i.e. road and the tyre.
Newton stated 3 laws that rules moving bodies:
First law - an object remains in its state (resting or moving at constant speed) unless acted upon a force
Second law - the force (F) of an object is equal to its mass (m) multiplied by its acceleration (a); F = m x a
Third law - when an object exerts a force upon another, the second object exerts a force that is equal in magnitude and opposite in direction
So, according to the First Law of Motion, the metor moving through outer space will continues its motion until an outside force acts upon it
Answer:29.4m/s
Explanation: Vf=Vi +at= 0 initial velocity +(9.8)(3)= 29.4 m/s
Answer:
The windowpanes are- transparent.
The color of the panes are due to the wavelengths of light that the glass- allows to pass through
Explanation:
Just answered the question.
