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AlexFokin [52]
3 years ago
12

HELP!! Why is motion not considered a force?

Physics
2 answers:
Olegator [25]3 years ago
8 0

Answer:

because force need motion

Explanation:

Liono4ka [1.6K]3 years ago
7 0

Answer:

There cannot be a force without motion and if there is no motion, then there is no force acting.

Explanation:

A force is a vector that causes an object with mass to accelerate.

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When were the following metals discovered:
Katen [24]

Answer:

A. 4000 BC

B. January 24, 1848

C. 1400 BC

Explanation:

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3 years ago
The atomic number of an atom is the number of ____.
NISA [10]
D protons

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3 0
3 years ago
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An elevator ascends at a constant speed of 4 m/s, how much time is required for the elevator in order to travel 120 m upwards?
vlabodo [156]

We simply use the formula,

velocity =\frac{distance}{time}

Given, velocity = 4 m per s and distance = 120 m.

Substituting these values, we get

4\ m/s =\frac{120\ m}{time}\\\\\ time=\frac{120\ m}{4\ m/s} = 30\ s.

Thus, required time for the elevator in order to travel 120 m upwards is 30 s.

3 0
3 years ago
A 1400 kg car is moving at 33.8 m/s when a force is applied the opposite direction of the car's motion. The car slows down to 21
zubka84 [21]

Solve for acceleration:

<em>a</em> = (21.4 m/s - 33.8 m/s) / (4.7 s)

<em>a</em> ≈ -2.6 m/s²

Solve for force:

<em>F</em> = (1400 kg) <em>a</em> ≈ -3700 N

The minus sign tells you the force points in the opposite direction of the car's motion. Its magnitude is always positive, so <em>F</em> = 3700 N.

3 0
3 years ago
An input for of 80 N is used to lift an object weighing 240 N with a system of pulleys. How far must the rope around the pulleys
sammy [17]

Answer:

4.2 m

Explanation:

Note: If energy is conserved, i.e no work is done against friction

Work input = work output.

Work output = Force output × distance,

Work input = force input × distance moved moved.

Therefore,

input force×distance moved = output force × distance moved........................Equation 1

Given: input force = 80 N, output force = 240 N, output distance = 1.4 m

Let input distance = d

Substitute into equation 1

80×d = 240×1.4

80d = 336

d = 336/80

d = 4.2 m.

Thus the rope around the pulley must be pulled 4.2 m

7 0
3 years ago
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