Question

Two
figure skaters stand facing each other on the ice. The woman, who
has a mass of 50 kg, pushes against the man, who has a mass of 100
kg, with 100 N of force. What happens? What are the accelerations
of each? (Ignore friction)

Answer #1

Two skaters, a man and a woman, are standing on ice. Neglect any
friction between the skate blades and the ice. The mass of the man
is 81 kg, and the mass of the woman is 49 kg. The woman pushes on
the man with a force of 46 N due east. Determine the acceleration
(magnitude and direction) of the following.
(a)the man aman =
(b)the woman awoman =

Two ice skaters, with masses of 67 kg and 53 kg , stand facing
each other on a 13-m-wide frozen river. The skaters push off
against each other, glide backward straight toward the river's
edges, and reach the edges at exactly the same time.

Two ice skaters, with masses of 71 kg and49 kg , stand facing
each other on a 11-m-widefrozen river. The skaters push off against
each other, glide backward straight toward the river's edges, and
reach the edges at exactly the same time.
How far did the 71 kg skater glide?
Express your answer to two significant figures and include the
appropriate units

Starting from rest, two skaters "push off" against each other on
smooth level ice, where friction is negligible. One is a woman and
one is a man. The woman moves away with a velocity of +2.7 m/s
relative to the ice. The mass of the woman is 50 kg, and the mass
of the man is 81 kg. Assuming that the speed of light is 4.4 m/s,
so that the relativistic momentum must be used, find the recoil
velocity of...

Starting from rest, two skaters "push off" against each other on
smooth level ice, where friction is negligible. One is a woman and
one is a man. The woman moves away with a velocity of +1.6 m/s
relative to the ice. The mass of the woman is 59 kg, and the mass
of the man is 88 kg. Assuming that the speed of light is 2.0 m/s,
so that the relativistic momentum must be used, find the recoil
velocity of...

Starting from rest, two skaters "push off" against each other on
smooth level ice, where friction is negligible. One is a woman and
one is a man. The woman moves away with a velocity of +1.6 m/s
relative to the ice. The mass of the woman is 59 kg, and the mass
of the man is 88 kg. Assuming that the speed of light is 2.0 m/s,
so that the relativistic momentum must be used, find the recoil
velocity of...

Two ice skaters stand at rest in the center of an ice rink. When
they push off against one another the 45-kg skater acquires a speed
of 0.68 m/s. If the speed of the other skater is 0.88 m/s, what is
this skater's mass?

Two ice skaters stand together as illustrated in Figure 3.28
(page 76). They push off and travel directly away from each other,
the boy with a speed of 0.69 m/s. If the girl has a mass that is
three fourths that of the boy, (a) What is the velocity of the
girl? (+ is same direction as boy)

Three ice skaters meet at the center of a rink and each stands
at rest facing the center, within arm's reach of the other two. On
a signal, each skater pushes himself away from the other two across
the frictionless ice. After the push, skater A with mass mA = 75.0
kg moves in the negative y-direction at 4.00 m/s and skater B with
mass mB = 70.0 kg moves in the negative x-direction at 2.00 m/s.
Find the x-...

Three ice skaters meet at the center of a rink and each stands
at rest facing the center, within arm's reach of the other two. On
a signal, each skater pushes himself away from the other two across
the frictionless ice. After the push, skater A with mass mA = 80.0
kg moves in the negative y-direction at 4.00 m/s and skater B with
mass mB = 95.0 kg moves in the negative x-direction at 3.50 m/s.
Find the x-...

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