Answer:
The collision occurs at a height of 1/3 of the total height of cliff.
Explanation:
The situation is represented in the attached figure:
For the stone dropped from top of cliff we have
Initial velocity of drop= 0 m/s.
Now the time at which it attains a velocity of 2v is obtained from first equation of kinematics as
Thus the distance it covers in this time can be calculated using third equation of kinematics as
For the stone thrown upwards the velocity at collision is give as 'v' thus the velocity at which it is thrown upwards can be calculated by first equation of kinematics as
The height over which it changes it's velocity from '3v' to 'v' can be again obtained from third equation of kinematics as
Thus the collision occurs at at a fraction of 1/3 of height.
I’m sure it true i’m not very sure
True, while technology such as phones has made nearly instantaneous communication possible we now have to deal with phone and computer addiction.
Answer:
option (d) contingencies of the self-worth account of self-esteem
Explanation:
The correct answer for the given question is option (d) contingencies of the self-worth account of self-esteem
According to the contingent self esteem, the person's self esteem is based on the approval of the other person or comparing on the social grounds.
Thus, The success or the failure for the person in any situation might lead to the fluctuations of their self-esteem
I think the best effect of the media on the families and children is that children are sometimes being influences by the happening or the trends that could be viewed in the media and family interaction would be decrease because of that children are always viewing or surfing social medias to entertain them instead by talking to their family
