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jolli1 [7]
3 years ago
13

What is the force on a body of mass 20 kg moving with an acceleration of 3 m/s2 ?

Physics
2 answers:
Ahat [919]3 years ago
7 0

Answer:

\boxed{Force \: on \: body = 60 \: N}

Given:

Mass of body = 20 kg

Acceleration = 3 m/s²

Explanation:

Force = mass × acceleration

= 20 × 3

= 60 kg m/s² or 60 N

zubka84 [21]3 years ago
5 0

<em>Hey</em><em>!</em><em>!</em>

<em>Sol</em><em>ution</em><em>,</em>

<em>Mass</em><em>(</em><em>m</em><em>)</em><em>=</em><em>2</em><em>0</em><em>k</em><em>g</em>

<em>Accele</em><em>ration</em><em> </em><em>due</em><em> </em><em>to</em><em> </em><em>gravity</em><em>(</em><em>g</em><em>)</em><em>=</em><em>3</em><em> </em><em>m</em><em>/</em><em>s^</em><em>2</em>

<em>Force</em><em>=</em><em>?</em>

<em>Now</em><em>,</em>

<em>Force</em><em>=</em><em>m</em><em>*</em><em>g</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>0</em><em>*</em><em>3</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>6</em><em>0</em><em> </em><em>Newton</em>

<em>The</em><em> </em><em>force</em><em> </em><em>is</em><em> </em><em>6</em><em>0</em><em> </em><em>Newton</em><em> </em>

<em>Hope </em><em>it</em><em> </em><em>helps</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

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Explanation:

It is given that, a long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire.

The charge per unit length of the wire is \lambda and the net charge per unit length is 2 \lambda.

We know that there exist zero electric field inside the metal cylinder.

(a) Using Gauss's law to find the charge per unit length on the inner and outer surfaces of the cylinder. Let \lambda_i\ and\ \lambda_o are the charge per unit length on the inner and outer surfaces of the cylinder.

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(b) Let E is the electric field outside the cylinder, a distance r from the axis. It is given by :

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6 0
3 years ago
The current through a 10 ohm resistor is 1.2 amperes.What is the potential difference across the resistor?
Natalija [7]

<u>Answer</u>: The potential difference across the resistor is 12 volts.

<u>Explanation:</u>

To calculate the potential difference cross the resistor, we use Ohm's Law. This law states that the potential difference across two wires is directly proportional to the current flowing through that wire.

Mathematically,

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dsp73

Answer:False

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When we pull the door by a force it causes zero displacements of the door. So we can say that work done on it is zero.

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<em />

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