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Firdavs [7]
3 years ago
10

Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with a force of 79.9 N , Jill pul

ls with 73.3 N in a direction 45° to the left, and Jane pulls in a direction 45° to the right with 137 N . (Since the donkey is involved with such uncoordinated people, who can blame it for being stubborn?) Find the magnitude of the net force the people exert on the donkey.
Physics
1 answer:
Lena [83]3 years ago
8 0

Answer:

Explanation:

Please refer the following link for your answer

https://www.assignmentexpert.com/homework-answers/physics-answer-73840.pdf

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The bus is heading southwest at 56 miles per hour is it veloctiy or speed
Anvisha [2.4K]

Answer:

Its velocity

Explanation:

Velocity is speed with a direction.

Speed is the rate at which someone or something is able to move or operate.

In the question its telling us that the bus is going 56 miles per hour but it aslo gives us a direction, in this case is southwest.

4 0
3 years ago
Light enters a substance from air at 30 degrees to thenormal.
Gwar [14]

Answer:

Explanation:

The angle of incidence and refraction are both measured from the normal

angle of incidence = 30°

angle of refraction = 23°

refractive index(n) = sini / sinr

n = sin30°/sin23°

n = 1.27965

refractive index (n) = 1/sinC

where C is the critical angle.

sinC= 1/n

C =arcsin (1/n)

C =arcsin (1/1.27965)

C = 51.39°

5 0
4 years ago
Give me more thank plz​
spayn [35]
Ok bro you are going to have 1 more
8 0
3 years ago
a mango drops to the ground from the top of a tree which is 5 meter high,how does it take the mango to reach the ground​
tatuchka [14]

Gravity tends to pull the object towards the earth's surface, resulting in a drop or a free fall. Fruits falling from a tree, a stone thrown off a cliff, skydiving, and other free-fall motions are examples.

Mango takes 1.009 seconds to reach the ground.

<h3>What is free fall ?</h3>
  • A situation in which an object moves solely under the influence of gravity is referred to as free fall. An external force acts on the ball, causing it to move faster. This free fall acceleration is also known as gravitational acceleration. The term "free fall" refers to a downward movement with no initial force or velocity.
  • Gravity tends to pull the object towards the earth's surface, resulting in a drop or a free fall. Fruits falling from a tree, a stone thrown off a cliff, skydiving, and other free-fall motions are examples.

h = \frac{g t^2}{2}

where,

h = height = 5m ,

t = time ,

g =gravity = 9.8 m/s.

t^{2} = 2h / g = 10/9.8 = 1.02

t= \sqrt{1.02} = 1.009 sec

To learn more about : Free Fall

Ref : brainly.com/question/12167131

#SPJ9

5 0
1 year ago
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