A period of one year on Earth is the time it takes Earth to
1 answer:
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Answer:
v' = 2.4 m/s
Explanation:
Given that,
Mass of one skater, m = 60 kg
Mass of the other's skater, m' = 60 kg
The two skaters push off each other. After the push, the smaller skater has a velocity of 3.0 m/s.
When there is no external force acting on a system, the momentum remains conserved. It means initial momentum is equal to the final momentum. Let v' is the velocity of the larger skater.
mv = m'v'
So, the velocity of the larger skater is 2.4 m/s.
A) The rhino's average velocity on the x-axis is 
. The position x after time t=21.5 s can be found by using the relationship:
where we used
as the x-position at time t=0, since the rhino was at the origin.
SImilarly, the average velocity on the y-axis is
, and the y-position after time t=21.5 s can be found by using:
where we used
since the the rhino was at the origin at time t=0.
b) The distance of the rhino from the origin can be calculated by calculating the resultant of the displacement of the rhino on both axes:
where we used
SImilarly, the average velocity on the y-axis is
where we used
b) The distance of the rhino from the origin can be calculated by calculating the resultant of the displacement of the rhino on both axes: