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3 years ago

A wooden log has to be carried by two people. If one of them is strong and another is weak, how will they carry the log?

Physics

1 answer:

AveGali [126]3 years ago

8 0

Answer:

I think it has to do with Newtonian Physics

The bottom person will carry most of the weight because of the direction of the forces involved.

The strong one should be in the back to support the log the most if it is at an angle. The weaker person should be in the front to lift the log up and carry it, but not necessarily put in the same sort of strength. The person who is pushing it up will have a harder time than the person lifting it to make it easier to transport.

Note: I am not an expert at physics, this answer is based on articles on the internet

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A spring with a force constant of 5.2 N/m has a relaxed length of 2.45 m. When a mass is attached to the end of the spring and a

Elodia [21]

Answer:

Elastic potential energy, E = 3.26 J

Explanation:

It is given that,

Force constant of the spring, k = 5.2 N/m

Relaxed length of the spring, X = 2.45 m

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To find,

The elastic potential energy stored in the spring.

Solution,

The extension in the length of the spring is given by :

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$x=3.57\ m-2.45\ m$

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3 years ago

If a electrician measures the current of a circuit to be 100 Amps and the circuit is only designed to have a current of 80 Amps,

Talja [164]

There are too many batteries in the circuit, which increased the emf of the circuit and in turn increased the current in the circuit.

<h3>Current in the circuit</h3>

The current in the circuit is determined by applying Ohms law as shown below;

V = IR

where;

I is the current
V is the voltage
R is the resistance

I = V/R

At a constant resistance of the circuit, the current in a circuit will increase when the emf of the circuit increases.

Thus, we can conclude that, there are too many batteries in the circuit, which increased the emf of the circuit and in turn increased the current in the circuit.

Learn more about current in circuit here: brainly.com/question/13195529

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