A space shuttle with a mass of approximately 7.08 E5 kg is sitting on the launch pad. What would be the weight of the space shut
1 answer:
The weight of the shuttle is
Explanation:
The weight of an object on Earth is the gravitational force exerted by the Earth on the object.
The magnitude of the weight of an object is given by:
where
m is the mass of the object
is the acceleration of gravity on Earth's surface
And the direction is downward (towards the Earth's centre).
For the shuttle in this problem, its mass is
So, its weight is
Note that while the mass of an object (m) does not change, its weight (W) changes according to the location, since the value of g can be different at different location (for example, on the Moon, the value of g is about 1/6 the value of g on the Earth).
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Answer:
The chance in distance is 25 knots
Explanation:
The distance between the two particles is given by:
(1)
Since A is traveling north and B is traveling east we can say that their displacement vector are perpendicular and therefore (1) transformed as:
(2)
Taking the differential with respect to time:
(3)
where and
are the respective given velocities of the boats. To find
and
we make use of the given position for A,
, the Pythagoras theorem and the relation between distance and velocity for a movement with constant velocity.
with this time, we know can now calculate the distance at which B is:
and applying Pythagoras:
Now substituting all the values in (3) and solving for we get: