Answer:
a
b
The value is 
Explanation:
From the question we are told that
The mass of the person is 
The horizontal velocity is 
The mass of the shed is 
The distance covered is 
Generally from the law of momentum conservation we have that
Here 
is the initial velocity of the shed which is 0 m/s
=>
Generally the workdone by friction is mathematically represented as
Here 
is the final velocity of the person and the shed when they come to rest and the value is 
Generally this workdone by friction is also mathematically represented as
=> 
=> 
=> 
=>
Answer: well it keeps the international space station in orbits around the earth and gravity keeps the moon keep orbiting the earth
Explanation:
Answer:
(D)6 times
Explanation:
Hello !
Because when we see the equation of momentum P=mv, where p=momentum
m=mass of the object&
v=velocity of the object
And, p is directly propositional to both mass and velocity.
Thus, p=mv
- p=3m.2v....giving on the values
- p=6(mv)
Therefore, we can conclude by when the mass is tripled and the velocity is doubled the momentum is increased by 6 units.
Explanation:
1. Convex mirror is curved outward.
2. Convex mirror forms an image that is smaller than the object.
3. Concave mirror is used to focus light rays. That's why it is also known as a converging mirror.
4. Plane mirror has a flat surface. It forms the same size of the image as that of the object.
Explanation:
For the given question, distance is given on x-axis and force is given on y-axis. Both distance and force are showing an interval of 5 with starting point 0.
Hence, work in 5 m to 12.5 m is equal and opposite to 12.5 m to 20 m. Since, work is equal then it means that kinetic energy at 5 m will also be equal to the kinetic energy at 20 m.
Therefore, we can conclude that the kinetic energy of the 2 kg object when d equals 20 m is the same as when d is most nearly 5 m.
