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3 years ago

Use the data from Table D of your Student Guide to answer the questions. Be sure to round your answers to the

Physics

2 answers:

Vikentia [17]3 years ago

8 0

Answer:

2kg cart = 16.0

4kg cart =8.1

6kg cart =5.3

Explanation:

Romashka [77]3 years ago

7 0

Answer:

Hi, you haven't provided the Table D of your Study Guide which contains the other variables needed to calculate the acceleration.

Therefore, I will just explain how to calculate the acceleration when we have the mass and the net force on the object.

Explanation:

For this example, we can use the Newton's second law of motion states that an object acceleration (a) is a function of the mass (m) of the object and the net force (F) on the object. Thus:

F = ma; a = F/m

(a) When the mass of the cart = 2 kg; if the net force is 32 kgcm/s^2

Then, a = F/m = 32/2 = 16.0 cm/s^2

(b) When the mass of the cart = 4 kg

Then, a = F/m = 32/4 = 8.0 cm/s^2

Then, a = F/m = 32/6 = 5.3 cm/s^2

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Explanation:

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3 years ago

A truck and a scooter moving with the same velocity colide. Why does the scooter fly off?

iragen [17]

We know, Momentum is the product of mass and velocity. As velocity is equal, momentum of Truck will be greater as mass of Truck is greater than the scooter. As momentum is greater from truck side, it will transfer the same amount to the scooter, so it flies away

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4 years ago

A plank rests on top of the axles of two identical wheels. Each wheel's outer radius is 0.25 meters and each wheel's axle has ra

kaheart [24]

Answer:

The plank moves 0.2m from it's original position

Explanation:

we can do this question from the constraints that ,

the wheel and the axle have the same angular speed or velocity
the speed of the plank is equal to the speed of the axle at the topmost point .

thus ,

since the wheel is pure rolling or not slipping,

⇒ $v=wr$

where

$v$ - speed of the wheel

$w$ - angular speed of the wheel

$r$ - radius of the wheel

since the wheel traverses 1 m let's say in time ' $t$ ' ,

$v_{w}=\frac{distance}{time} =\frac{1}{t}$

∴

⇒ $w=\frac{v_{w}}{r} = \frac{1}{t*0.25}$

the speed at the topmost point of the axle is :

⇒ $v_{a}=w*r\\v_{a}=\frac{1}{t*0.25} *0.05\\v_{a}=\frac{1}{5t}$

this is the speed of the plank too.

thus the distance covered by plank in time ' $t$ ' is ,

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4 years ago

Example of a balanced force

Goryan [66]

An example of a balanced force would be a book sitting on a shelf untouched.

Isaac Newton’s First Law of Motion states that an object at motion stays in motion, and an object at rest stays at rest until acted on by an unbalanced force. A book sitting still is an example of a balanced force because nothing is acting on it; its potential energy is stored while it’s at rest. For this book to become an unbalanced force, an outside force would have to occur (i.e pushing the book or dropping it) that causes it to not be in a state of stillness.

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1 year ago

calculate the gravitational force in between two objects of mass 25 kg and 20 kg if distance between them is 5m

sladkih [1.3K]

Answer:

Gravitational force is 1.33 × 10^-9 N

Explanation:

$force = \frac{GMm}{ {r}^{2} }$

${ \sf{ = \frac{6.67 \times {10}^{ - 11} \times 25 \times 20 }{ {5}^{2} } }} \\ \\ = { \sf{1.33 \times {10}^{ - 9} \: newtons }}$

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3 years ago