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3 years ago

A force of 12N acts to the left on a body and a force of 16 N acts to the right . The size and direction of resultant force is

Physics

1 answer:

mash [69]3 years ago

6 0

Answer:

<h2>4 N to the right</h2>

Explanation:

<u>The force acting to the right of the body is acting in the positive x direction while the force acting to the left of the body is acting in the negative x direction.</u>

If a force of 12N acts to the left on a body and a force of 16 N acts to the right, force acting to the left will be -12N while that acting to the right will be +16N.

The resultant force acting on the bod will be the sum of the two forces.

Resultant = -12N+16N

Resultant = 4N

<u>The direction of the resultant force will be towards the right since the resultant is a positive value.</u>

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3 years ago

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2 years ago

The train traveled 500 kilometers north to Odessa in 2 hours . What’s the train’s speed ? What is the velocity ?

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Explanation:

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3 years ago

If a rock climber accidentally drops a 77.5-g piton from a height of 215 meters, what would its speed be just before striking th

Viktor [21]

Let us list out what we know from the question.

Initial Velocity $V_{i} = 0$ since the piton is 'dropped'.

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Final Velocity $V_{f} = ?$

Using the equation, $V^{2} _{f} = V^{2} _{i} + 2aD$ and plugging in the known values, we get

$V^{2} _{f} = 0^{2} + 2(9.8)(215)$

Simplifying by taking square-root on both sides gives us $V_{f} = 64.915 m/s$

Thus, the speed of the piton just before striking the ground is 65 m/s.

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3 years ago

Find the voltage drop (in volt) along a 93.4 meter long 10 gauge copper wire carrying acurrent of 72.5 A. The diameter of a 10 g

Sophie [7]

Answer: 5.41 V

Explanation:in order to explain this result we have to use the Ohm law given by:

ΔV=R*I where R is the resistance which is equal R= ρ*L/A . ρ is the resistivity, L the length of the wire and A is the cross section. I is the current.

Then we have

ΔV=ρ*L*I/A= 1.68 * 10^-8 Ωm*93.4 m*72.5A/2.1* 10^-5 m^2=5.41 V

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3 years ago