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miv72 [106K]
3 years ago
6

A 100 kg cyclist travels at 4.5 m/s. A 50 kg gorilla is dropped straight down onto her. What is the new speed of the system?

Physics
1 answer:
krek1111 [17]3 years ago
6 0

Mass of cyclist = 100 kg

Mass of gorilla = 50 kg

Initial speed = 4.5 m/s

Let Final speed = s

100 x 4.5 = (100 + 50) x s

450 = 150s

S = 450/150

S = 3

The new speed is 3m/s

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How much force is needed to accelerate a 62 kg skier at 3 m/sec2?
Fittoniya [83]

Answer:

<h2>The answer is 186 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>force = mass × acceleration</h3>

From the question

mass = 62 kg

acceleration = 3 m/s²

We have the final answer as

force = 62 × 3

We have the final answer as

<h3>186 N</h3>

Hope this helps you

8 0
3 years ago
A charge of 2.00 μC flows onto the plates of a capacitor when it is connected to a 12.0-V potential source. What is the minimum
uysha [10]

To develop this problem we will apply the concept of energy conservation. For which the work carried out must be equivalent to the potential energy stored on the capacitor. We will start by finding the capacitance to later be able to calculate the energy and therefore the work in the capacitor

C = \frac{Q}{V}

Here,

C = Capacitance

V = Potential difference between the plates

Q = Charge between the capacitor plates

At the same time the energy stored in the capacitor can be defined as,

U = \frac{1}{2} CV^2

We will start by finding the value of the capacitance, so we will have to,

C = \frac{2\mu C}{12.0V}

C = 0.166\mu F

Finally using the expression for the energy we have that,

U = \frac{1}{2} CV^2

U = \frac{1}{2} (0.166\muF)(12.0V)^2

U = 11.0*10^{-6} J

Therefore the minimum amount of work that must be done in charging this capacitor is 11.0*10^{-6} J

8 0
3 years ago
Read 2 more answers
What would the reaction force of a person be that stands completely still with a mass of 100 kg?
Anastaziya [24]

-981N would be the reaction force of a person be that stands completely still with a mass of 100 kg.

An opposing force to an action force is referred to as a reaction force. The response force that results from surface engagement and adhesion while sliding is known as friction. Usually, the activities of applied forces result in reaction forces and reaction moments.

As,

F = ma

where, F = force

           m = mass of object

           a = acceleration due to gravity

Plugging in the values we get,

F = 100kg × 9.81m/s

F = 981 N

Since, reaction force acts opposite to action force so the correct answer is -981N.

Learn more about force here;

brainly.com/question/13191643

#SPJ4

4 0
2 years ago
What is weight? and what is mass
777dan777 [17]
Hey :)

Weight is the force acting on the object due to gravity.

Mass is the measure of the quantity of matter that a body or an object contains

Hope this helps :)
3 0
3 years ago
What is one major difference between federal and unitary governments
nikklg [1K]

Answer:

In a unit government, all the powers of government are moved around in the central government where in turn in a federal government, the powers of government are divided between the center and the units.

Explanation:

I hope this helps.

5 0
1 year ago
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