Question
In: Physics
In a park: a 75 kg bicyclist rides 5.8 m/s north; a 24 kg dog runs...
In a park: a 75 kg bicyclist rides 5.8 m/s north; a 24 kg dog runs 3 m/s east chasing a 3.3 kg squirrel running 2.6 m/s the same way; 200 kg park bench remains stationary; and a 43 kg child runs 1 m/s 45◦ south of east. What is the magnitude of the total momenta of this park system?
Report the value in kg*m/s rounded to the nearest whole number.
Solutions
genius_generous answered 2 years agoRelated Solutions
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before reaching work.
a. What is her...
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A 2.9 kg block with a speed of 3.6 m/s collides with a 5.8 kg
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A child m = 30 kg runs at vi = 5 m/s tangentially to a small...
A child m = 30 kg runs at vi = 5 m/s tangentially to a small
playground merry-go-round, aiming at the edge with idea of jumping
on and spinning around. The merry-go-round has mass 80 kg, radius
1m, and can be modeled as a thin solid disk.
1. What is the angular speed of the merry-go-round after the
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2. After the merry-go-round turns through 270◦ , the child jumps
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A car with mass 1309 kg is travelling north at a speed of 28.9 m/s. It...
A car with mass 1309 kg is travelling north at a speed of 28.9
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A bicyclist starts from rest and accelerates to 5 m/s in 20 s. The wheels of...
A bicyclist starts from rest and accelerates to 5 m/s in 20 s.
The wheels of the bicycle have a diameter of 80 cm.
a) What is the angular velocity of the wheels at maximum
speed?
b) What is the angular acceleration of the bicycle wheels during
this time?
c) Find the number of revolutions the wheels make during this
time.
d) Find the average angular velocity of the wheels between the
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A 3.71 kg ball of clay is traveling straight north with a speed of 24.8 m/s,...
A 3.71 kg ball of clay is traveling straight north with a speed
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A 1000. kg remote-controlled stunt car traveling at 17.0 m/s north collides with a 900. kg...
A 1000. kg remote-controlled stunt car traveling at 17.0 m/s
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immediately after the collision? 7.2 m/s 7.7 m/s 10.2 m/s 12.4
m/s
A 900-kg car traveling east at 20.0 m/s collides with a 750-kg car traveling north at...
A 900-kg car traveling east at 20.0 m/s collides with a 750-kg
car traveling north at 15.o m/s. The cars stick together. Assume
that any otherunbalanced forces are negligible. (Draw Diagrams)
(a) What is the speed of the wreckage just after the
collision?
(b) In what directions does the wreckage move just after the
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(c) What is the total Kinetick Energy before the collision?
(d) What is the total Kinetic Energy after?
A 900-kg car traveling east at 20.0 m/s collides with a 750-kg car traveling north at...
A 900-kg car traveling east at 20.0 m/s collides with a 750-kg
car traveling north at 15.0 m/s. The cars stick together. Assume
that any other unbalanced forces are negligible. (Draw
Diagrams)
(a) What is the speed of the wreckage just after the
collision?
(b) In what direction does the wreckage move just after the
collision?
(c) What is the total Kinetic Energy before the collision?
(d) What is the total Kinetic Energy after?
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