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
iogann1982 [59]
3 years ago
12

A 1000 Kg car traveling at 10 m/s hits the back of a 5000 Kg truck

Physics
1 answer:
insens350 [35]3 years ago
8 0

Answer:

0 m/s

The car becomes stationary

Explanation:

The law of conservation of linear momentum states that the sum of inital and final momentum should be equal and expressed as

m_cu_c+m_tu_t=m_cv_c+m_tv_t

Where m represent the mass, u and v are tge initial and final velocities while subscripts c and t represent car and truck.

Taking forward direction as positive then considering that the truck is originally at rest, we substitute original truck velocity with 0, mass of car and truck with 1000 kg and 5000 kg respectively then final truck velocity as 2 m/s as we take initial car velocity to be 10 m/s

1000*10+(5000*0)=5000*2+1000v

1000v=0

V=0

Therefore, the car finally becomes stationary.

You might be interested in
If the atoms and molecules of a substance are moving very fast, the substance is _________.
lana66690 [7]
A. hot is the correct answer.
Hope it helps!
5 0
3 years ago
Read 2 more answers
Help ASAP plsssss:///
kenny6666 [7]

Answer:

c

Explanation:

8 0
3 years ago
For an object to slow down and stop due to friction while sliding across the floor which of the following would be true.
EastWind [94]

Answer:10-4

Explanation:

4 0
2 years ago
What should you do if someone on foot approaches your car while you are in it?
tatyana61 [14]
It depends. If you are driving and the person doesn't look like a serial killer, you should stop.
6 0
3 years ago
The muzzle velocity of a rifle bullet is 709 m s−1along the direction of motion. If the bullet weighs 35 g, and the uncertainty
nydimaria [60]

Answer:

Uncertainty in position of the bullet is \Delta x=1.07\times 10^{-33}\ m

Explanation:

It is given that,

Mass of the bullet, m = 35 g = 0.035 kg

Velocity of bullet, v = 709 m/s

The uncertainty in momentum is 0.20%. The momentum of the bullet is given by :

p=mv

p=0.035\times 709=24.81\ kg-m/s

Uncertainty in momentum is,

\Delta p=0.2\%\ of\ 24.81

\Delta p=0.049

We need to find the uncertainty in position. It can be calculated using Heisenberg uncertainty principal as :

\Delta p.\Delta x\geq \dfrac{h}{4\pi}

\Delta x=\dfrac{h}{4\pi \Delta p}

\Delta x=\dfrac{6.62\times 10^{-34}}{4\pi \times 0.049}

\Delta x=1.07\times 10^{-33}\ m

Hence, this is the required solution.

7 0
3 years ago
Other questions:
  • A large truck and a compct car are both driving down the
    15·1 answer
  • A 4.5-kg, three legged stool supports a 89-kg person. If each leg of the stool has a cross-sectional diameter of 2.8 cm and the
    12·1 answer
  • What part of the electromagnetic spectrum can be seen by humans
    14·1 answer
  • The train traveled 500 kilometers north to Odessa in 2 hours . What’s the train’s speed ? What is the velocity ?
    13·1 answer
  • A force of 20 N is inclined at 30 degrees to the X axis. What are X and Y components of the force?
    7·2 answers
  • What is it called when objects become positively charged when they lose electrons and negatively charged when they gain electron
    5·2 answers
  • A 110 kg tackler moving at 2.5m/s meets head on (and holds on to) an 82 kg halfback moving at 5.0m/s. what will be their mutual
    9·2 answers
  • How to calculate motion​
    8·2 answers
  • HELP ME PLZ !!!!!!!!!!!!!!!!!!!!
    11·2 answers
  • Can someone help me with the motion maps, I don't understand what I am supposed to write in the description or how to draw the a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!