Question

880 kilogram car traveling East at 15 meters per second collides with a 750 kg car traveling north at 20 meters per second the cars stick together. in what direction does the wreckage move just after the Collision.

please show all work so I can actually learn this. thanks.

Answer #1

Consider east as x-axis and north as y-axis.

Initial momentum of the 880 kg car, P1 = 880 x 15

= 13200 kg m/s

Initial momentum of the 750 kg car, P2 = 750 x 20

= 15000 kg m/s

Total initial momentum, Pi = P1 + P2

= 13200 kg m/s
+ 15000 kg m/s

Using momentum conservation, Final momentum = Initial
momentum

Final momentum, Pf = 13200 kg m/s
+ 15000 kg m/s

tan
= Pf_{y}/Pf_{x}

= 15000 / 13200

= 1.136

= tan^{-1}(1.136)

= 48.65 degrees anti-clockwise with respect to x-axis (east)

A 900-kg car traveling east at 15.0 m/s collides with a 750-kg
car traveling north at 20.0 m/s. The cars stick together. What is
the speed of the wreckage just after the collision? In what
direction does the wreckage move just after the collision?

A 940 kg car traveling east at 12.3 m/s collides with a 670 kg
car traveling north at 20.3 m/s . The cars stick together. Assume
that any other unbalanced forces are negligible.
A) In what direction does the wreckage move just after the
collision?
B) What is the speed of the wreckage just after the
collision?

a 900kg car traveling 30.0 degree south of east at
12.0m/s collides with a 750kg car traveling North at 17.0m/s . the
cars stick together. what is the speed of the wrekage just after
the collision

A 2500 kg car moving east at 10.0 m/s collides with a 3000 kg
car moving north. The cars stick together and move as a unit after
the collision, at an angle of 47.0° north of east and at a speed of
6.66 m/s. Find the velocity of the 3000 kg car before the
collision. m/s north

A 1200-kg sportscar is heading east at 75 km/h toward the east
when it collides with a 3350-kg truck traveling south at 50 km/h
and they stick together upon collison. Both vehicles were
driverless cars, so nobody was injured in this collision. What is
the direction of motion of the wreckage after collision?

A 2,500-kg car moving east at 10.0 m/s collides with a 3,000-kg
car moving north. The cars stick together and move as a unit after
the collision, at an angle of 35.0 degrees north of east and at a
speed of 5.55 m/s. Find the speed of the 3,000-kg car before the
collision.
__________ m/s north

A 900 kg car moving East with speed of 20 m/s collides with a
1500 kg car moving North with speed of 15 m/s at an intersection.
Both cars stick together after collision. What is the speed and
direction of these two stuck cars immediately after this
collision?

Car A of mass 1,274 kg is traveling east at 13.2 m/s when it
collides with car B of mass 1,596 kg which is traveling at 14.6 m/s
at 71.4 degrees N of W. The two cars stick together after the
collision. What is the magnitude of the final velocity of the
cars?

A 1,900 kg vehicle traveling east on Anderson Avenue at 59.0
km/hr collides with a 3,800 kg vehicle traveling north across
Anderson Avenue at 21.0 km/hr. If they stick together on collision,
what is the magnitude and direction of their velocity just after
colliding?
__________ km/hr
__________ ° north of east.

A 750 kg car is stalled on an icy road during a snowstorm. A
1000 kg car traveling eastbound at 14 m/sm/s collides with the rear
of the stalled car. After being hit, the 750 kg car slides on the
ice at 4 m/sm/s in a direction 30∘ north of east.
Part A
What is the magnitude of the velocity of the 1000 kg car after
the collision?
Express your answer in meters per seconds to two significant
figures.
Part...

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