Answer:
a)P= -4800 i
b)F= 0
Explanation:
Given that
r = (4570-160 t) i + 2930 j + 130 k
We know that velocity is rate of change of the space vector.
V= dr/dt
r = (4570-160 t) i + 2930 j + 130 k
dr/dt= -160 i + 0 + 0
dr/dt= -160 i
V= -160 i
It means that velocity is in only x-direction
We also know that acceleration is the rate of change of velocity .
a= dV/dt
V= -160 i
dV/dt=0
So we can say that acceleration is zero.
a= 0
From Second law of Newton'
Force = Mass x acceleration
F= 300 x 0
F= 0
We know that linear momentum P
P = m V
Given that m= 300 kg
P = 300 x (-160 i)
P= -4800 i
Answer:
The body stores it as fat
Explanation:
Answer:
it means that species is extinct.
Explanation:
have a good day :)
´To develop this problem we will use the concepts related to the conservation of momentum and the application of energy conservation equations to find the velocity of the mass after the collision, like this:
Velocity of the mass 
just before the collision
Therefore the momentum just before collision would be
Momentum after the collision
Since the momentum is conserved we have that
The velocity of mass 
after the collision is given by
Therefore the change in momentum of mass 2 is
Therefore the impulse acting on m2 during the collision between the two boxes is 
