Answer: 5.9 m/s
Explanation:
This problem can be solved by the Conservation of Momentum principle, which establishes that the initial momentum must be equal to the final momentum :
(1)
Where:
(2)
(3)
is the mass of the skater
is the mass of the ball
is the initial velocity of the skater and the ball
is the final velocity of the ball
is the final velocity of the skater
Substituting (2) and (3) in (1):
(4)
Isolating :
(5)
(6)
Finally:
02
OOO
9
19
Answer:
K2 = N*K1
Explanation:
The force you apply to each section is the same you apply to the whole spring, but the extension of each section is dX/N (if dX is the extension of the entire spring)
meters away?
Answer:
60m/s
Explanation:
v=s÷t
75m÷1.25s=60m/s
Answer
60
Explanation:
This is because if the question gives you the distance and the time, you have to find the speed.