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
IRINA_888 [86]
3 years ago
5

A 25-kilogram mass travels east with a constant velocity of 40. meters per second. the momentum of this mass is

Physics
2 answers:
Alexxandr [17]3 years ago
4 0
<span>Momentum, a quantity of motion of a moving body, is mathematically defined as mass x velocity. Hence the magnitude of momentum of a 25-kg mass traveling at 40 m/s is 40x25 = 1000 kg-m/s. As momentum is directional in nature, momentum = (1000i + 0j + 0k) kg-m/s in vector notation (as body is traveling east)</span>
DiKsa [7]3 years ago
3 0
Momentum is the product of speed/velocity and the mass of a body in motion. The momentum of a body at rest is zero since its speed is also zero. In this case, the mass is 25 kg while the velocity is 40 m/s.
Therefore, momentum = mass x velocity
                                     = 25 × 40
                                     = 1000 kgm/s
You might be interested in
In a ballistics test, a 52g bullet hits a sand bag and stops after moving 1.34 m. If the initial bullat
olya-2409 [2.1K]

Answer:

Friction force on the bullet is 58.7 N opposite to its velocity

Explanation:

As we know that initial speed of the bullet is 55 m/s

after travelling into the sand bag by distance d = 1.34 m it comes to rest

so final speed

v_f = 0

now we can use kinematics top find the acceleration of the bullet

v_f^2 - v_i^2 = 2 a d

so we have

0 - 55^2 = 2(a)(1.34)

a = -1128.7 m/s^2

now by Newton's II law we know that

F = ma

so we have

F = (0.052)(-1128.7)

F = -58.7 N

8 0
3 years ago
Science: Physics AND Biology - Please help me with these, it's due tonight.
Ostrovityanka [42]
The answer to the first question is that plants make glucose and oxygen by taking in CO2 and H20.

The answer to the second question is having a heavier mass increases the force of a moving object. That is the Second Law of Motion, F = ma.
7 0
3 years ago
Which description does the phrase "mechanical advantage" most closely relate to?
yKpoI14uk [10]
<span>the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine. I would say the answer is D, but i'm not sure. :)</span>
4 0
3 years ago
The supporting force exerted by a fluid on an object immersed in it is called ______.
aniked [119]

Answer: buoyant force

Explanation:

7 0
2 years ago
Read 2 more answers
What is the equivalent resistance of a circuit that contains three 10.0 12
lana66690 [7]

Answer:

Explanation:

The equivalent resistance for three resistors connected in parallel is given as

(1/R)=(1/R₁)+(1/R₂)+(1/R₃)

now we.need to.insert the value of 3 resistances but only 2 are given in the question.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Three +3.0-μC point charges are at the three corners of a square of side 0.50 m. The last corner is occupied by a −3.0-μC charge
    14·2 answers
  • For number 1 I'm really confused
    6·2 answers
  • What is the critical angle of a light beam passed from a medium (n=2) to a medium (n=1.2)?
    14·1 answer
  • If you could observe atoms and molecules with the naked eye, what would you look for as conclusive evidence of a chemical reacti
    8·1 answer
  • The severity of a tropical storm is related to the depressed atmospheric pressure at its center. In August 1985, Typhoon Odessa
    13·1 answer
  • A converging lens has a focal length of 20 cm. An object 1 cm tall is placed 10 cm from the center of the lens. What is the heig
    11·1 answer
  • A 0.25-kilogram ball is observed to accelerate at 4,000 m/sec2 as it is hit with a bat.
    7·1 answer
  • 8. At what position does the mass have the greatest acceleration?
    14·1 answer
  • . The p.d. at the terminals of a battery is 25V when no load is connected and 24V when a load taking 10A is connected. Determine
    5·1 answer
  • The speed of sound is measured to be 340 m/s on a certain day.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!