the expression like a ton of bricks means very hard would being hit by an actual ton of brick ls hurt?
1 answer:
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Answer:
43.88 meters per second
Explanation:
The computation of the speed is shown below:
As we know that
where,
Distance is 395,000 meters
Time is 9,000 seconds
Now placing these values to the formula
So, the speed is
= 43.88 meters per second
As speed shows the relation between the distance and time and the same is to be considered i.e by applying the formula
Answer:
Option D
2 m/s East
Explanation:
From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum
Momentum, p=mv where m is the mass and v is the velocity
Since the masses are the same then
Therefore
where and
are final velocities of objects while
and
are the initial velocities respectively
Taking East direction as positive then West as negative and by substitution
Therefore
hence East since it's positive