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vekshin1
3 years ago
11

Which single force acts on an object in free fall

Physics
2 answers:
Pavel [41]3 years ago
5 0

Answer:

Gravitational force

Explanation:

An object moving under free fall, the force acting on it is only gravity. The object move under the action of gravitational force. The force of gravity is always attractive. This force depends on the masses and the distance between masses.

Hence, force of gravity is the only force acting on the object when it is moving in free fall.

ICE Princess25 [194]3 years ago
4 0

Answer:

gravity

Explanation:

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Answer:

The answer to your question is : vf = 15.18 m/s

Explanation:

Data

vo = 24 m/s

d = 120 m

vf = ? when d = 60.0 m

Formula

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For d =100m

            a = (vf² - vo²) / 2d

            a = (0 -24²) / 2(100)

            a = -576/200

             a = 2.88 m/s²

Now, when d = 60

        vf² = (24)² - 2(2.88)(60)

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3 years ago
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A horizontal spring-mass system has low friction, spring stiffness 160 N/m, and mass 0.3 kg. The system is released with an init
anygoal [31]

Answer:

(a) 0.38 m

(b) 2.78 m/s

(c) 0.11 watt

Explanation:

mass, m = 0.3 kg

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(b) Let v is the maximum speed.

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Initial potential energy + initial kinetic energy = final kinetic energy

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v = 2.78 m/s

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T=2\pi\sqrt{\frac{m}{K}}

T=2\pi\sqrt{\frac{0.3}{160}}

T = 0.272 second

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