Answer:
Explanation:
In a completely inelastic collision the momentum P is conserved, so can be expressed as:
As P is defined as:
Replacing:
(Eq. 1)
As the problem says that the two cars have the same mass:
And in a completely inelastic collision the velocities after the collision are equal, so:
So replacing in Eq. 1:
Solving for :
And replacing the values for the velocity:
Answer:
from the above analysis we can say that the angular velocity in the later case is more than that of the former case. This means that the number of rotation made in the truck case is more than that made in pike position.
Explanation:
This can be explained on the basis of conservation of angular momentum.
This means the initial and the final angular velocity is conserved. Consider initial position (1)in the pike and final position in the be truck position. So there inertia's will also be different.
⇒
also,
since,
therefore,
So, from the above analysis we can say that the angular velocity in the later case is more than that of the former case. This means that the number of rotation made in the truck case is more than that made in pike position.
Answer:
9.6 rad/s
Explanation:
= length of the metal rod = 50 cm = 0.50 m
= Mass of the long metal rod = 780 g = 0.780 kg
Moment of inertia of the rod about one end is given as
= force applied by the hammer blow = 1000 N
Torque produced due to the hammer blow is given as
= time of blow = 2.5 ms = 0.0025 s
= Angular velocity after the blow
Using Impulse-change in angular momentum, we have
The answer would be the Specific humidity
Answer:
Atomic size decreases from left to right in te periodic table.
Explanation:
With increase in effective nuclear charge without a corresponding increase in the number of shells across the period, electrostatic interaction between electrons and the nucleus increases with the net effect that atomic size decreases towards the right of the periodic table. For this reason, there are peaks at the larger alkali metals and valleys at the smaller noble gases.