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Akimi4 [234]
3 years ago
14

A spring scale reads 20 N as it pulls a 4 kilogram box across a table. What is the magnitude of the force exerted by the mass on

the spring scale, if the frictional force is assumed to be equal to zero?
Physics
1 answer:
Ivan3 years ago
6 0
The answer is 40!!!!!!!!!!!!!
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An athlete wants to refill an old punching bag used for training, as shown in the picture. When refilled, the bag will rip if it
In-s [12.5K]

The maximum force that the athlete exerts on the bag is NEGATIVE 1,500 N and in the OPPOSITE DIRECTION of the force that the bag exerts on the athlete.

<h3>Newton's third law of motion</h3>

Newton's third law of motion states action and reaction are equal and opposite. That is the force applied to an object is equal in magnitude to force experienced by the object but in opposite direction.

From the given question, when the bag exert a certain on the athlete, the athlete also exerts similar force to the bag but in opposite direction.

Thus, the complete sentence is as follows;

The maximum force that the athlete exerts on the bag is NEGATIVE 1,500 N and in the OPPOSITE DIRECTION of the force that the bag exerts on the athlete.

Learn more about Newton's third law of motion here: brainly.com/question/25998091

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5 0
2 years ago
Which one will have more pressure? Explain
Crazy boy [7]

Answer:

B

Explanation:

Because according to the bolye law . Pressure is inversely propotional to volume . So higher the pressure lower the volume. P1×V1=P2×V2

4 0
3 years ago
Read 2 more answers
Which of earths layers is made up of liquid metal
just olya [345]
The mantle. It is also the largest earth layer, making up about 84% of the earth. 
4 0
3 years ago
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I need help, thanks! :^)
NNADVOKAT [17]

Answer:

B. Air

Explanation:

I'm taking the exam rn ^^

3 0
3 years ago
A 25.0-N force is applied to a 5.0-kg object to accelerate is rightwards. The object encounters 15.0-N of friction. Determine th
djyliett [7]

Answer: The acelaration is 2 m/s^2

Explanation: Using the second Newton law

The total force acting over the object is equal to the mass x accelaration, that is:

We considerer the applied force to the object equal to 25N

and the friction force of 15 N

25N-15N= m*a

6 0
3 years ago
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