1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nikdorinn [45]
3 years ago
5

A car heading north collides at an intersection with a truck of the same mass as the car heading east. If they lock together and

travel at 28 m/s at 37° north of east just after the collision, how fast was the car initially traveling? Assume that any other unbalanced forces are negligible.
what is the correct answer
34 m/s
17 m/s
26 m/s
68 m/s
...?
Physics
1 answer:
stealth61 [152]3 years ago
3 0

This phenomenon is an inelastic collision. The problem is easier to solve because the masses of the colliding bodies are equal. By conservation of momentum, the final momentum of the bodies as one is equal to the VECTOR sum of the momentum of individual bodies. 

For this problem, the final velocity of the two cars is the sum of the initial velocities of each car. The velocity of the car is just the component of the velocity along the north direction.

Using trigonometry,
v1 = vf * sin(theta)
v1 = 28 * sin(37)

v1 = 16.9 m/s
You might be interested in
Fill in the blank: An object is most likely to sink in water if _________________.
drek231 [11]
High density
random words to fill up 20 character minimum for answering questions :P
4 0
3 years ago
Read 2 more answers
Which option is part of designing a set of experimental procedures
-BARSIC- [3]

determining how data will he gathered

Explanation: Apex

7 0
3 years ago
The refractive index of glass is 1.52
Ksenya-84 [330]

Explanation:

..upper side is glass ..

3 0
3 years ago
How fast did Newton decide a cannon ball shot out in order to escape Earth’s gravity?
arsen [322]

Plugging in for the Earth's mass and for G, we have 11.2 km/s for the escape velocity for an object launched from the Earth's surface. This is about 25,000 miles per hour

7 0
3 years ago
Which property of light remains unchanged when it enters a different medium?
Amiraneli [1.4K]
The FREQUENCY of light remains unchanged once it leaves the source.
3 0
3 years ago
Read 2 more answers
Other questions:
  • A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?
    13·1 answer
  • A skier is skiing down a slope on a mountain. Is mechanical energy conserved?
    6·2 answers
  • A torque of 50 N*m acts on a wheel of moment of inertia 25 kg*m^2 for 4 s and then is removed.
    9·1 answer
  • Work & Power Problems
    14·1 answer
  • For two objects with masses 100 kg and 500 kg to be 20 meters apart , find the gravity between them
    11·1 answer
  • (a) The volume flow rate in an artery supplying the brain is 3.4 x 10-6 m3/s. If the radius of the artery is 5.6 mm, determine t
    8·1 answer
  • Evaluating an experiment provides a scientist with an opportunity to check for errors in experiment design.
    12·1 answer
  • You have two identical beakers A and B. Each beaker is filled with water to the same height. Beaker B has a rock floating at the
    13·1 answer
  • Question 1 This is slowing the flow of electrons (the current) and where some of the electrons' energy gets converted into heat.
    13·2 answers
  • todos los cuerpos pueden estar sobre la tierra por la fuerza de gravedad .cuando nos caemos ,saltamos y realizamos otras activid
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!