Please answer me teachers fir this question
Dear Student,
1.
Retardation means negative acceleration. (Option d)
2.
When body is performing uniform circular motion, its direction changes at every point. (Option b)
Because the direction of a particle moving in a circle changes at a constant rate. All the vector quantities that can ve calculated through the formulation in a uniform circular motion changes their direction that is why they cannot remain constant.
3.
The tendency of a body to resist acceleration is called inertia. (Option c)
Inertia is a resistance of any physical object to any change in its state of motion, including changes to its speed and direction.
4.
In a collision momentum is always conserved. (Option b)
Regards
1.
Retardation means negative acceleration. (Option d)
2.
When body is performing uniform circular motion, its direction changes at every point. (Option b)
Because the direction of a particle moving in a circle changes at a constant rate. All the vector quantities that can ve calculated through the formulation in a uniform circular motion changes their direction that is why they cannot remain constant.
3.
The tendency of a body to resist acceleration is called inertia. (Option c)
Inertia is a resistance of any physical object to any change in its state of motion, including changes to its speed and direction.
4.
In a collision momentum is always conserved. (Option b)
Regards