Question

A 73.3-kg linebacker (\"X\") is running at 6.71 m/s directly toward the sideline of a football field. He tackles a 91.7-kg running back (\"O\") moving at 8.61 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision both players momentarily leave the ground and go out-of-bounds at an angle φ relative to the sideline, as shown in the diagrams below. What is the common speed of the players, immediately after their impact? What is the angle, φ, of their motion, relative to the sideline?

Answer #1

On a very muddy football field, a 109-kg linebacker tackles an
82-kg halfback. Immediately before the collision, the linebacker is
slipping with a velocity of 9.0 m/s north and the halfback is
sliding with a velocity of 6.3 m/s east. What is the velocity
(magnitude and direction) at which the two players move together
immediately after the collision?
magnitude ------m/s
direction --------° north of east

On a very muddy football field, a 100 kg linebacker tackles an
80 kg halfback. Immediately before the collision, the linebacker is
slipping with a velocity of 8.6 m/s north and the halfback is
sliding with a velocity of 7.4 m/s east.

In a football game, a tackle running at a constant speed of 5
m/s tackles a stationary receiver. The two fly off horizontally at
3 m/s, before they hit the ground and begin to slow down. If the
mass of the tackle is 125 kg
What is the speed of the system's center of mass before the collision?

A 115 kg football player runs with a velocity of 4.6 m/s north
and collides with a second 135 kg football player running south.
Following the collision the two players are both moving south at
0.75 m/s. What was the speed of the second football player
initially?
Report the value in m/s rounded to the nearest tenth.

1. A 50.5 kg quarterback is running with a football downfield at
a speed of 2 m/s and is tackled by another player with a mass of 70
kg running toward him at 4 m/s. When the tackler grabs the
quarterback, they both fall backward at the same speed of 1 m/s
(opposite to the original direction of the quarterback). In the
process, the 0.5 kg football comes loose at the moment the
collision takes place.
a) Calculate the velocity...

A running back with a mass of 76 kg and a velocity of 5 m/s
(toward the right) collides with, and is held by, a 114-kg
defensive tackle going in the opposite direction (toward the left).
What is the velocity of the tackle before the collision for their
velocity afterward to be zero? (Remember, velocity is a vector)

A
120 kg lineman moving west tackles an 80kg football fullback moving
east at 8 m/s. After the collision, the 80kg fullback move east at
2m/s and the 120kg lineman moves east at 3m/s. What was the
velocity(speed and direction) of the 120kg lineman before the
collision ?

A 110-kg football player running at 8.00 m/s catches a 0.410-kg
football that is traveling at 25.0 m/s. Assuming the football
player catches the ball with his feet off the ground with both of
them moving horizontally, calculate:
the final velocity if the ball and player are going in the same
direction
a
7.88 m/s
b
8.06 m/s
c
8.00 m/s
d
890 m/s
the loss of kinetic energy in this case.
a
59.0 J
b
3,690 J
c
3,650...

A 116 kg football player is running at 8.05 m/s. A hard-thrown
0.410 kg football has a speed of 23.5 m/s. (Assume the football
player is running in the +x-direction.)
Assuming that the football player catches the ball with his feet
off the ground with both of them moving horizontally, calculate the
following.
(a) the final velocity (in m/s) if the ball and player are going
in the same direction (Indicate the direction with the sign of your
answer. Enter...

A 89.5-kg fullback running east with a speed of 5.05 m/s is
tackled by a 95.5-kg opponent running north with a speed of 3.10
m/s.
(a) Explain why the successful tackle constitutes a perfectly
inelastic collision.
(b) Calculate the velocity of the players immediately after the
tackle (I HAVE THE ANSWER TO B)
magnitude: 2.91
?direction: 33.25
m/s
north of east
(c) Determine the mechanical energy that disappears as a result of
the collision.
J
Account for the missing energy....

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