Question
In: Physics
A 1100-kg car travels at 26 m/s and then quickly stops in 3.4 s to avoid...
A 1100-kg car travels at 26
m/s and then quickly stops in 3.4 s to
avoid an obstacle.
What is the initial speed of the car in
mph?
mph
| Tries 0/2 |
What is the initial kinetic energy of the car in
kilojoules (kJ)?
kJ
| Tries 0/2 |
What is the initial momentum of the car?
kg*m/s
| Tries 0/2 |
What is the magnitude of the
impulse necessary to stop the car?
kg*m/s
| Tries 0/2 |
What is the magnitude of the average
force in kiloNewtons (kN) that stopped the car?
kN
| Tries 0/2 |
What is the magnitude of the average
acceleration that stopped the car?
m/s2
Solutions
genius_generous answered 2 years agoRelated Solutions
what average force is required to atop an 1100 kg car in 8.0 s if the...
what average force is required to atop an 1100 kg car in 8.0 s if
the car is traveling at 72 mph?
determine the density of a 10.2 g sphere that has a radius of
5m.
if the height of the bannister was 5.68m, the time keepers
reaction time was 0.2 s, and the time it took the ball to reach the
ground was 1.25s. determine acceleration of gravity.
A car enters an onramp of a highway at 21.8 m/s and travels at a constant...
A car enters an onramp of a highway at 21.8 m/s and travels at a
constant velocity for 3.63 s before speeding up to a final velocity
of 32.1 m/s in 6.90 s to merge with highway traffic. The total time
taken for the trip is 10.5 s. Assume the car doesn't have to change
direction for this motion (1D motion).
Draw a picture of this motion and create a coordinate system
Please reverse the direction of your coordinate system....
A 2290 kg car traveling at 11.7 m/s collides with a 2620 kg car that is...
A 2290 kg car traveling at 11.7 m/s collides with a 2620 kg car
that is initially at rest at the stoplight. The cars stick together
and move 3.30 m before friction causes them to stop. Determine the
coefficient of kinetic friction betwen the cars and the road,
assuming that the negative acceleration is constant and that all
wheels on both cars lock at the time of impact.
A 3.4 kg block moving with a velocity of +4.9 m/s makes an elastic collision with...
A 3.4 kg block moving with a velocity of +4.9 m/s makes an
elastic collision with a stationary block of mass 1.8 kg.
(a) Use conservation of momentum and the fact that the relative
speed of recession equals the relative speed of approach to find
the velocity of each block after the collision.
m/s (for the 3.4 kg block)
m/s (for the 1.8 kg block)
(b) Check your answer by calculating the initial and final kinetic
energies of each block....
A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving...
A 1700 kg car moving east at 17 m/s collides with a 1800 kg car
moving south at 20 m/s, and the two cars stick together. Consider
east the positive x-direction and north the positive
y-direction.
a) What is the x-component of the initial momentum before the
collision? ( -7100 kg·m/s, 64900 kg·m/s or 28900 kg·m/s)
b) What is the y-component of the initial momentum before the
collision? (-36000 kg·m/s, -7100 kg·m/s, 64900 kg·m/s or 36000
kg·m/s)
c) What is...
A 5 kg block starting with an initial velocity of 7.69 m/s travels a distance of...
A 5 kg block starting with an initial velocity of 7.69 m/s
travels a distance of x m along a rough surface that has a
coefficient of kinetic friction of μ=0.15. It then travels up a
frictionless ramp at an angle of 17.0⁰ to a height of 1.38 m until
it stops. How far does it travel along the rough surface - what is
the x? (Note there may be more information provided in the
problem statement than you need...
A) A car travels at a constant speed of 32.5 mi/h (14.5 m/s) on a level...
A) A car travels at a constant speed of 32.5 mi/h (14.5 m/s) on
a level circular turn of radius 49.0 m, as shown in the bird's-eye
view in figure a. What minimum coefficient of static friction,
μs, between the tires and the roadway
will allow the car to make the circular turn without sliding?
B) At what maximum speed can a car negotiate a turn on a wet
road with coefficient of static friction 0.215without sliding out
of control?...
Brakes are applied to a 3000-kg car moving at 30 m/s. The car skids 200 m...
Brakes are applied to a 3000-kg car moving at 30 m/s. The car
skids 200 m and stops. What is the coefficient of kinetic
friction?
A car starts from rest and travels east with an acceleration of 4x10^-3 m/s^2. Another car...
A
car starts from rest and travels east with an acceleration of
4x10^-3 m/s^2. Another car travels towards west at a constant speed
of 70kph. The two cars are 100km apart.
a. What is the time it takes for the two cars to meet
b. time it takes for them to be 100km apart for the second
time
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
collision?
(c) What is the total Kinetick Energy before the collision?
(d) What is the total Kinetic Energy after?
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Parallel Arrays This question is in MindTap Cengage Summary In this lab, you use what you...
- 5. You have invested 30 percent of your portfolio in Jacob, Inc., 40 percent is Bella...
- JAVA Write a test program that prompts the user to enter a series of integers and...
- (2) Cite an example on how organizations like Google, Facebook, Youtube etc collect data for image...
- The legal landscape is perpetually changing. Psychologists must remain abreast of these changes to avoid potentially...
- We are evaluating a project that costs $1.68 million, has a six-year life, and has no...
- In C++ Having call-by-reference allows one to use storeback parameters, i.e., parameters whose values are transmitted...
ADVERTISEMENT