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
PSYCHO15rus [73]
2 years ago
9

The velocity of a 200 kg object is changed from 5 m/s to 25 m/s in 50 seconds by an applied constant force.

Physics
1 answer:
hram777 [196]2 years ago
4 0
<h2>a) Change in momentum is 4000 kg m/s in the direction of motion</h2><h2>b) Magnitude of the force is 80 N</h2>

Explanation:

Force is given by rate of change of momentum.

Mass of object = 200 kg

Initial velocity = 5 m/s

Final velocity = 25 m/s

a) Change in momentum = 200 x 25 - 200 x 5

Change in momentum = 4000 kg m/s in the direction of motion

b) Time taken = 50 s

Rate of change of momentum = Change in momentum ÷ Time

Rate of change of momentum = 4000 ÷ 50

Rate of change of momentum = 80 N

Force = 80 N

Magnitude of the force is 80 N

You might be interested in
what is the kinetic energy of an object that as a mass of 12 kilograms and moves with the velocity of 10 m/s
Galina-37 [17]

Answer:

120 m/s

Explanation: QUIZLET

7 0
3 years ago
Which projectiles will be visibly affected by air resistance when they fall?
NemiM [27]
Any object that is launched as a projectile will lose speed and, as a result, altitude, as it travels through the air. The rate at which the object loses speed and altitude depends on the amount of force that way applied to it when it was launched. It is also dependent on the size and shape of the item. This is why something like, say, a football is much faster to fall to the ground than a bullet.
4 0
3 years ago
What is meant by an acceleration of negative 2metre per second square​
soldi70 [24.7K]

means that a body is in motion, and its velocity is measured in meters per second. And, that velocity is increasing by two meters per second, every second.

8 0
3 years ago
Read 2 more answers
The unit for measuring the rate at which light energy is radiated from a source is the
zzz [600]
The correct answer is letter D. candela. The unit for measuring the rate at which light energy is radiated from a source is the candela. L<span>umen is the unit for measuring the total amount of visible light emitted by a source. Lux is lumen per square meter. </span>
5 0
3 years ago
which organ system maintains posture and produces heat? a. muscluar b. nervous c. skeletal d. integumentary
Ostrovityanka [42]
Answer is a shoe this helps
7 0
2 years ago
Other questions:
  • Which of the following is not an intensive physical property?
    12·2 answers
  • A ship was traveling across the Atlantic Ocean. It traveled 2,000 kilometers at a rate of 40 kilometers per hour. How long did i
    14·1 answer
  • A transformer is to be used to step down voltage from an alternating current source from 220V to 110V. If the primary has 120 tu
    14·1 answer
  • You are conducting an experiment inside an elevator that can move in a vertical shaft. A load is hung vertically from the ceilin
    15·1 answer
  • If the radius of the atom is the distance from point A to D, where is the MOST likely location of the LEAST concentration of mas
    12·1 answer
  • a cylinder of mass 34.5 kg rolls without slipping on a horizontal surface. At a certain instant, its center of mass has a speed
    9·2 answers
  • What muscle are controlled by the autonomic muscle system and are involuntary
    15·2 answers
  • A car drives 90 meters north, then turns around and drives 120 meters south. What was its displacement and distance?
    15·1 answer
  • A 20-cm-long stick of m = 0.600 kg is lifted by a rope tied 5.0 cm from the upper end. The other end touches a smooth floor. The
    15·1 answer
  • if an object moves from a position of x = 12 m to x = 124 m, then back to x = 98 m. If the time it takes to complete this motion
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!