In the first case, the momentum is 4,860,000Kgm/s while in the second case, the momentum is 4,550,000Kgm/s.
<h3>What is momentum?</h3>
The term momentum of a body refers to the product of mass and velocity. It is a vector quantity.
In the first case;
momentum = 81,000Kg * 60m/s = 4,860,000Kgm/s
In the second case, we must find the resultant velocity V
V = √(25)^2 + (43)^2
V = 50 m/s
Hence;
Momentum = 91000Kg * 50 m/s
= 4,550,000Kgm/s
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A joule is equal to the energy used to accelerate a body with a mass on one kilogram using one newton of force over a distance of one meter.
It’s true because gravity is what pulled the dust and minerals and formed them into plants and dwarf planets.
Answer:
11.7 s
Explanation:
In this problem, the rocket is moving in a uniform accelerated motion. We have the following data:
d = 223 m, the distance that the sled has to cover
, the acceleration of the rocket
We can use therefore the following SUVAT equation:
where
d is the distance
u = 0 is the initial velocity of the sled (it starts from rest)
t is the time
a is the acceleration
Re-arranging the equation and substituting the numbers, we find the time it takes for the rocket to cross the field:
On a large scale, no. Sound travels through space by the compression and relaxation of molecules. When you speak to someone on Earth, each inflection of voice compresses local molecules, and relaxes the molecules around the compressed ones. In space, however, the large lack of molecules means that the compression waves can’t be transmitted from the sound to the listener.