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blsea [12.9K]
3 years ago
8

Why does a revolving stone tied in a string flies away when the string breaks??

Physics
1 answer:
Anastasy [175]3 years ago
4 0
It is due to the inertia of direction. When the string breaks, the force acting on the stone ceases. In the absence of force, the stone flies away in the direction of instantaneous velocity which is along the tangent to the circular path.
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100 POINTS 100 POINTS 100 POINTS!!!!!<br> HELP PLEASE I DON'T KNOW WHAT TO DO!!!!!
Westkost [7]

Answer:

block 2 or 4

because of the distribution of weight and force being applied to the object

3 0
3 years ago
Read 2 more answers
Two ropes support a load of 478 kg. The two ropes are perpendicular to each other, and the tension in the first rope is 2.2 time
sveta [45]

Answer:

T₂ = 1937.68 N

Explanation:

First, we will calculate the weight of the object:

W = mg = (478\ kg)(9.81\ m/s^2)\\W = 4689.18\ N

Now, we will calculate the resultant tension in the ropes. Since the ropes are perpendicular. Therefore,

T = \sqrt{T_1^2+T_2^2}\\

where,

T = Resultant Tension

T₁ = Tension in rope 1

T₂ = Tension in rope 2

According to the given condition tension in the first rope is 2.2 times the tension in the second rope:

T₁ = 2.2 T₂

Therefore

T = \sqrt{(2.2T_2)^2 + T_2^2}\\\\T =  2.42T_2

Now, the weight of the object must be equal to the resultant tension for equilibrium:

T = W\\2.42T_2 = 4689.18\ N\\\\

<u>T₂ = 1937.68 N</u>

5 0
3 years ago
You can mow an average of 1400 square meters each hour. How many minutes will it take you to mow a lawn with an area of 320000 s
Ksivusya [100]

Answer:

time required to mow lawn is 1274.06 minutes

Explanation:

given data

average mow = 1400 square meters each hour

area = 320000 square feet

to find out

How many minutes will take to mow lawn

solution

we know that here 1 square feet is equal to 0.092903 square meter

so 320000 square feet will be = 0.09203 × 320000 = 29728.9728 square meter

so time required is express as

time required = \frac{distance}{speed}

time required = \frac{29728.9728}{1400}

time required = 21.23 hours

so time required = 21.23 × 60 min = 1274.06

time required to mow lawn is 1274.06 minutes

7 0
3 years ago
A roller coaster has a vertical loop with radius 25.7 m. With what minimum speed should the roller-coaster car be moving at the
gogolik [260]

Answer:

15.88m/s

Explanation:

At the top of the roller coaster you will have three forces acting on the roller-coaster. See the image below. Fc is the centripetal force (for an object in circular motion), Fg is the gravitational force, and Fn is the normal force. To achieve the minimum speed we assume the roller-coaster is barely touching the vertical loop and so the normal force is zero. This leaves two acting forces.

F_g = F_c\\mg = \frac{m\times v^2}{r}\\v = \sqrt{gr} = \sqrt{9.81 \times 25.7}  = 15.88 m/s

7 0
3 years ago
D. What is the net force on the bowling ball rolling lane
3241004551 [841]

Answer:

Friction

Explanation:

3 0
3 years ago
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