Answer:
Part a)

Part c)

This mean the truck is decelerating and its speed is decreasing
Part e)

Part f)

Explanation:
Part a)
Speed of the truck is given as

as we know that
1 km = 1000 m
1 h = 3600 s
so we will have


Part c)
Average acceleration is given as

now we have


Part e)
as we know that it is uniform acceleration
so we can say



Part f)
distance traveled by the truck is given as



Answer:
Both of the stunt professionals will sustain injuries of the same seriousness
Explanation:
We are being told that both stunt professionals are standing from the same height, therefore they will attain the same equivalent speed at the bottom if we are to look at it from the principle of conservation of energy.
Now; According to principle of momentum; the momentum at which the first stunt professional A hits the ground be equal as the momentum with which stunt professional B will hit the wall.
Thus; both of the stunt professionals will sustain injuries of the same seriousness
Answer: C.
Explanation:
i choose B and got it wrong it told me the answer after on edge.
Answer:

Explanation:
The strain is defined as the ratio of change of dimension of an object under a force:

where
is the change in length of the object
is the original length of the object
In this problem, we have
and
, therefore the strain is
