The two forces are 12N and 10N (option B)
<h3>What is the net force?</h3>
The net force is the force that has the same effect in magnitude and direction as the two forces acting together.
This problem can be solved using a right angled triangle;
Let the forces be P and Q
sin 40 = P/16
P= 16 sin 40
P = 10 N
Cos 40 = Q/16
Q = 16 cos 40
Q = 12 N
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Answer:
(C) , The wires repel
Explanation:
We are given that
Length of wire=L=7 m
We have to find the magnitude and direction of the force that the two segments of this cord exert on each other.
Where
Using the formula
When the wires carrying current in equal current in opposite direction then, the wire repel to each other.
Hence, the wires repel to each other.
What's going on is that the water in the straw is pushed into the straw by the air pressure outside of the straw. As long as the pressure outside is able to overcome the force of gravity, the liquid will stay in the straw.
Answer:
A) 30 N upward
Explanation:
There are two forces on the block: buoyant force up and weight down. The net force is 5 N up, so:
5 N = B − W
The weight is 25 N so:
5 N = B − 25 N
B = 30 N
The buoyant force is 30 N up.