Question

You are ice skating at 13 m/s toward a grizzly bear who is in turn skating 4 m/s toward you. Your weight is 756 N and the bear is 900 N. Immediately after the collision you are moving at 8 m/s in your original direction. Neglect external horizontal forces applied by the ice to the skaters during the collision. What is the velocity of the bear immediately after the collision? Calculate the decrease in total kinetic energy of both you and the bear.

Answer #1

Use momentum conservation principle to find the required velocity of the bear immediately after collision.

***********************************************************************************************

**This concludes the answers. If there is any mistake or
omission, let me know in the comments immediately and I will fix
it....**

A 72-kg father who is ice skating west collides with his 28-kg
son who is ice skating north. Immediately after the collision, the
father and son are observed to be moving together with a velocity
of 2.5 m/s, in a direction 18 degrees north of west. What were the
speeds of the father and the son before the collision? ( Be sure to
give both speeds)

Mahmut with mass 65.0 kg and Güllü with mass 45.0 kg are
skating. While Mahmut stands at rest, He is struck by Güllü. She is
moving at 14.0 m/s before she collides with him. Güllü has a
velocity of magnitude 8.00 m/s at an angle of 53.1∘ from
her initial direction after the collision. Both skaters move on the
frictionless and horizontal surface .
1.Find the magnitude of Mahmut's velocity after the
collision?
2.Find the direction of Mahmut's velocity after the...

Mahmut with mass 70.0 kgkg and Güllü with mass 45.0
kgkg are skating. While Mahmut stands at rest, He is
struck by Güllü. She is moving at 12.0 m/sm/s before she collides
with him. Güllü has a velocity of magnitude 8.00 m/sm/s at an angle
of 52.1 ∘∘ from her initial direction after the collision. Both
skaters move on the frictionless and horizontal surface .
a)Find the magnitude of Mahmut's velocity after the
collision?
b)Find the direction of Mahmut's velocity after the...

A 60 kg man is ice-skating due north with a velocity of 6.0 m/s
when he collides with a 31 kg child. The man and child stay
together and have a velocity of 3.0 m/s at an angle of 35° north of
due east immediately after the collision.
(a) What is the magnitude of the child's velocity just before
the collision?
4.399 m/s
(b) What is the direction of the child's velocity just before the
collision?
° (south of east)

Two ice skaters, Daniel (mass 69.0 kg) and Rebecca (mass 51.0
kg) are practicing. Daniel stops to tie his shoelace and, while at
rest, is struck by Rebecca, who is moving at 13.5 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 6.3 m/s at an angle of 51.5° from her initial direction.
Both skaters move on the frictionless, horizontal surface of the
rink.
(a) What are the magnitude and direction of Daniel's velocity...

Two ice skaters, Daniel (mass 70.0 kg ) and Rebecca (mass 45.0
kg ), are practicing. Daniel stops to tie his shoelace and, while
at rest, is struck by Rebecca, who is moving at 13.0 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 8.00 m/s at an angle of 55.1 ∘ from her initial
direction. Both skaters move on the frictionless, horizontal
surface of the rink.
Part A What is the magnitude of...

Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0
kg ), are practicing. Daniel stops to tie his shoelace and, while
at rest, is struck by Rebecca, who is moving at 14.0 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 8.00 m/s at an angle of 55.1 ∘ from her initial
direction. Both skaters move on the frictionless, horizontal
surface of the rink.
a.What is the magnitude of Daniel's velocity...

Two ice skaters, Daniel (mass 70.0] kg) and Rebecca (mass 50.0
kg) are practicing. Daniel stops to tie his shoelace and, while at
rest, is struck by Rebecca, who is moving at 15.0 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 7.0 m/s at an angle of 38.0° counterclockwise from her
initial direction (as viewed from above). Both skaters move on the
frictionless, horizontal surface of the rink.
a-What is the magnitude of...

Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0
kg ), are practicing. Daniel stops to tie his shoelace and, while
at rest, is struck by Rebecca, who is moving at 12.0 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 8.00 m/s at an angle of 54.1 ∘ from her initial
direction. Both skaters move on the frictionless, horizontal
surface of the rink.
Part A
Part complete
What is the...

Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0
kg ), are practicing. Daniel stops to tie his shoelace and, while
at rest, is struck by Rebecca, who is moving at 12.0 m/s before she
collides with him. After the collision, Rebecca has a velocity of
magnitude 8.00 m/s at an angle of 54.1 ∘ from her initial
direction. Both skaters move on the frictionless, horizontal
surface of the rink.
Part A
Part complete
What is the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 25 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago