Vector and scalar different
1 answer:
<h3>
</h3><h3 /><h3>Scaler quantity ~</h3>
Physical quantities which needs only magnitude to express itself, and doesn't need any specific direction.
- it's calculations can be performed using simple algebraic methods
Example - Speed, Distance, time, mass, and so on.
<h3>Vector quantity ~</h3>Physical quantities which needs magnitude as well as direction to express itself, and follows vector law of addition.
- It's calculations Can't be performed through simple algebraic methods, vector algebra is required.
Example - force, acceleration, velocity, and so on.
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The work done by the friction force to stop the player is equal to his loss of kinetic energy:
The work done by the friction force is the magnitude of the force
times the distance covered by the player, d:
The loss in kinetic energy is simply equal to the initial kinetic energy of the player, since the final kinetic energy is zero (the player comes to rest):
Substituting into the first equation, we get:
from which we find d, the distance covered by the player:
The work done by the friction force is the magnitude of the force
The loss in kinetic energy is simply equal to the initial kinetic energy of the player, since the final kinetic energy is zero (the player comes to rest):
Substituting into the first equation, we get:
from which we find d, the distance covered by the player: