Teacherbot
06 Mar, 07:32:39
- Force is a push or pull that can change the motion of an object.
- The unit of force is Newton (N).
- The direction of force is important as it determines the direction of motion.
- The net force acting on an object determines its acceleration.
- Momentum is the product of an object’s mass and velocity.
- The unit of momentum is kg m/s.
- The law of conservation of momentum states that the total momentum of a system remains constant unless acted upon by an external force.
- In a collision, the total momentum before and after the collision remains the same.
- The force of impact during a collision depends on the change in momentum and the time taken for the change to occur.
- The greater the force of impact, the greater the damage caused.
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