Answer:
v = 1/3 m / s = 0.333 m / s
in the direction of the truck
Explanation:
The average speed is defined by the variation of the position between the time spent
v = Δx / Δt
since the position is a vector we must add using vectors, we will assume that the displacement to the right is positive, the total displacement is
Δx = 20 - 15 +20
Δx = 25 m
therefore we calculate
v = 25/75
v = 1/3 m / s = 0.333 m / s
in the direction of the truck
Answer:
The moment of inertia is 
Explanation:
The moment of inertia is equal:

If r is 
and 


8 electron are needed for bonding
Answer:
False
Explanation:
It depends on the density of an object, not the wight.
Answer:
Inertia
Explanation:
We have to find that on which quantity the momentum of an object does not depend.
We know that
Momentum of object=mv
Where m=Mass of object
v=Velocity of object
Momentum of object depends upon mass and velocity.
When velocity of object increases then momentum is also increases.
When the mass of object is increases then the momentum of object is also increases.
If mass decreases then the momentum of object decreases.
If velocity decreases then the momentum of object decreases.
Acceleration depends on velocity because
Acceleration=
Therefore, momentum is also depend upon the velocity.
Inertia is defined as the property of object that resist change in its motion.
Therefore, momentum does not depend on Inertia of object.