20000 ft/s or 6100 m/s
T
F
Explanation :
The momentum of an object is defined as the product of its mass and the velocity with which it is moving. It is denoted as p.
Mathematically, it is written as :
m is the mass of an object
v is the velocity
So, it is clear that the momentum of an object is directly proportional to its velocity.
The statement "as a moving object's velocity decreases, its momentum decreases" is absolutely true.
The relationship between the stiffness of a medium and the speed of the wave is directly proportional. Because molecules are closer in a stiff medium, an increase of stiffness in a medium would also result to an increase in which a wave travels.
2. A stationary ball on the ground
3. A sleeping dog
4. A boy running across the street
5. A car traveling on the road
6. A stretched rubber band
7. A basketball being thrown
8. A girl biking at the park
9. A leaf lying on the ground
10. A planet revolving around a star