Answer: 1. 0.25 m/s squared
2. A = 0.4 m/s^2
3.=20kg. I did this before.
Explanation:
The force of impact is same for both bus and the bicycle. The acceleration of bicycle will be greater than the acceleration of bus.
<u>Explanation:</u>
The interaction that occurs between two objects refers to collision. this makes the two objects to come in contact with each other. The third law of Newton states that, when there occurs a collision between two objects, then the force that is applied on each object will be same. But, the direct in which the force is impacted will be in opposite direction.
The magnitude of the forces will be equal but the direction will not be same. The collision results in gaining the momentum by one object and losing momentum by another. The acceleration is mainly associated with the mass of the object. When the object has smaller mass, it will be accelerated more. In the given example, as bus is heavier than bicycle, the bicycle will have greater acceleration than the bus.
Answer:
3. Kinetic energy of the system is maximum when potential energy is minimum.
Explanation:
Given that
Mass of block= m
Spring constant =K
Table is friction less.
As we know that in oscillatory motion ,when kinetic energy is maximum then potential energy will become minimum.
At the mean position:
Kinetic energy is maximum.
Potential energy is minimum.
At the extreme position:
Kinetic energy is minimum.
Potential energy is maximum.
At the mean position velocity of block will be maximum that is why it have maximum kinetic energy and at the extreme position the velocity of block will be minimum that is why it have minimum kinetic energy.
So from above we can say that kinetic energy of the system is maximum when potential energy is minimum.
