A 1-kg small object is placed exactly halfway between the Earth and the Moon. It
ID: 1335316 • Letter: A
Question
A 1-kg small object is placed exactly halfway between the Earth and the Moon. Its initial velocity is zero. The influence of the sun and the other planets is negligible. A few minutes later... (select one of the choices below, only one is correct)
the object’s speed is increasing but the object’s acceleration is constant.
the object is moving toward the Moon at constant speed.
the object is moving toward the Earth at constant speed.
the object’s speed and the object’s acceleration are increasing.
the object is still at rest at its initial position.
the object’s speed is increasing but the object’s acceleration is constant.
the object is moving toward the Moon at constant speed.
the object is moving toward the Earth at constant speed.
the object’s speed and the object’s acceleration are increasing.
the object is still at rest at its initial position.
Explanation / Answer
Here ,
halfway between earth and moon ,
as earth is much more massive than moon , the force on the object due to earth will be much larger than the force due to moon .
Hence , the object will be accelerating towrds earth
the correct option is
the object’s speed and the object’s acceleration are increasing.
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