Please can someone solve this question
1 answer:
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We can solve the problem by using conservation of momentum.
The player + ball system is an isolated system (there is no net force on it), therefore the total momentum must be conserved. Assuming the player is initially at rest with the ball, the total initial momentum is zero:
The total final momentum is:
where is the momentum of the player and
is the momentum of the ball.
The momentum of the ball is:
While the momentum of the player is: , where M=59 kg is the player's mass and vp is his velocity. Since momentum must be conserved,
so we can write
and we find
and the negative sign means that it is in the opposite direction of the ball.
In the double-slit interference experiment, the distance of the nth-maximum from the center of the screen is given by
where
is the wavelength
D is the distance between the screen and the slits
d is the distance between the slits
In our problem,
By applying the previous formula, we can calculate the distance of the 4th maximum from the center of the screen:
Similarly, the distance of the 8th- maximum is
Therefore, the distance between the two maxima is
where
D is the distance between the screen and the slits
d is the distance between the slits
In our problem,
By applying the previous formula, we can calculate the distance of the 4th maximum from the center of the screen:
Similarly, the distance of the 8th- maximum is
Therefore, the distance between the two maxima is