Answer:
<em>J=600 kg m/s
</em>
Explanation:
<u>Impulse And Momentum
</u>
Suppose a particle is moving at a certain speed 
and changes it to 
. The impulse J is equivalent to the change of linear momentum. The momentum can be computed by
The initial and final momentums are given, respectively, by:
Thus, the change of momentum is
It's equal to the Impulse J
Our data is
Answer:
49 km/h
Explanation:
60 km/h acceleration for 0.75 hours.
60 × 3/4 = 45 km/h
Take the acceleration and add it to the speed the train was already moving at:
45 + 4 = 49km/h
Answer:
The pulling force that should the man apply to create an upward acceleration is 141.6 N
Explanation:
Newton's second law can be stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Newton's Second law can be expressed in the following formula:
F=m*a
Where:
<em>F=</em>Force
<em>m</em>=mass
<em>a</em>= acelleration
Then, we replace given values in the formula to know the force:
Answer:
The beauty of science is everywhere.
Explanation:
science is extremely important and you see it all around you. For instance you need knowledge of chemistry to create medication in order to help cure the sick. Knowledge of physics is needed in order to construct building or vehicles.
make sure to ask if you need anymore examples or proof :)
1). This graph reveals exponential decay. As time goes on (moving left to right across the graph), the maximum excursion of the pendulum's swing becomes smaller and smaller. On a graph of exponential growth, it would get larger and larger as time goes on.
2). The first time the pendulum's maximum height dipped below 1 inch was on the <em>4th swing.</em>
