the velocity at which the boy see the ball go by is 7ms-1
Answer:
the answer is B
Explanation:
i got mine right when i did mine
Speed is a scalar quantity given by the rate of change in distance. Thus, it is given by distance covered divided by the time taken to cover the distance.
Speed= distance/time
therefore, speed is directly proportional to the distance covered if time taken is kept constant, such that an increase in distance causes a corresponding increase in speed and vice versa, hence if the speed triples then you will need thrice times the distance to stop.
Answer:
The key is the proximity of the Moon to the Earth compared to the Sun.
Explanation:
The Moon is closer to the Earth than to the Sun, and the formula for the gravitational force contains in the denominator the square of the distance in between the interacting objects. Such is going to be translated into a much larger denominator for the case of the Sun, than for the case of the Earth. A larger value in the denominators will produce a much smaller force
The gravitational influence of the Sun can also be observed in more subtle orbit displacements for example during Sun eclipses when the moon is clearly in between the sun and the Earth.
