Answer:
to be seen correctly and throughly
B (+), C (-), D (-), E (+), F (-)
Answer:
2.4 m
Explanation:
We are given that
Maximum moment about A=18 kN m
Force=15 KN

We have to find the largest allowable length of the beam
Let larges length of beam=L
Moment about A
M=
According to question



Hence, the largest length of the beam=2.4 m
Answer:
ω = 5.41 rad/s
Explanation:
Since the rod is rotating around its axis, angular momentum will play part in this question.
The conservation of angular momentum implies that

So, the initial angular momentum is

The final angular momentum includes the rod and the bullet together. So,

The force applied on the fly and the windshield are equal based on Newton's Law of Action and Reaction. the difference between them is that the fly's body does not have enough mechanical strength to withstand the force but the windshield does.