Answer:
D. the linear velocity of the point of contact (relative to the inclined surface) is zero
Explanation:
The force of friction emerges only when there is relative velocity between two objects . In case of perfect rolling , there is no sliding so relative velocity between the surface and the point of contact is zero . In other words the velocity of point of contact becomes zero , even though , the whole body is in linear motion . It happens due point of contact having two velocities which are equal and opposite . One of the velocity is in forward direction and the other velocity which is due to rotation is in backward direction . So net velocity of point of contact becomes zero . Due to absence of sliding , displacement due to friction becomes zero . Hence work done by friction becomes zero.
Heat is most closely related to THERMAL energy.
Potential Is having or showing the compacity (Stored energy)to become or develop something in the future so it has to be potential energy
The initial velocity given one object will make it hit the ground first.
<h3>What is velocity?</h3>
Velocity is the displacement of a body in a given time interval.
Velocity is a vector quantity since displacement is also a vector quantity.
- Velocity = Displacement/time
Two objects are released from a certain height above the ground.
One is given an initial velocity while the other had no initial velocity.
The two objects are accelerated to the same extent by gravity.
However, because of the initial downward velocity of the first object, it will hit the ground first.
In conclusion, the initial velocity given one object will make it travel faster than the other object.
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If you wanted the laser to refract less as it exits the prism, you should increase the wavelength of the light.
<h3>What is
refraction?</h3>
Refraction can be defined as a phenomenon which describes a change (bend) in the path taken by light when it's at surfaces between different transparent materials.
According to the model of light wave, the refraction of light is inversely proportional to its wave. Thus, you should increase the wavelength of light, if you want the laser to refract less as it exits the prism.
Read more on refraction here: brainly.com/question/15838784
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