Answer:
x2 and x-2 i think
Step-by-step explanation:
Answer:
C (3,14)
Step-by-step explanation:
y=6x-4
y=7x-7
6x-4=7x-7
-x=-3
x=3
y=6*3-4=14
Answer: 146.12 m/s (to the right)
Step-by-step explanation:
The Conservation of Linear Momentum principle states that the initial momentum (before the elastic collision) must be equal to the final momentum (after the elastic collision):
(1)
Being:
Where:
is the mass of the racket
is the velocity of the racket before the collision
is the mass of the ball
is the velocity of the ball before the collision
is the velocity of the racket after the collision (assuming it is at rest after hitting the ball)
is the velocity of the ball the collision
So, we have the following:
(2)
Finding :
(3)
(4)
Finally:
This is the velocity of the ball after the collision
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Answer:
what do we answer? you did not attach anything at all? pls attatch a picture or screenshot that way we can help.