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Lynna [10]
2 years ago
9

In the diagram below, if A's magnitude is 16 N and B's is 25 N, what is the magnitude of C?

Physics
1 answer:
morpeh [17]2 years ago
3 0
Assuming that’s a right triangle, in this case A^2 + C^2 = B^2 … (16)^2 + C^2 = (25)^2 … C = 19.2 N
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The Great Sandini is a 60 kg circus performer who is shotfrom a cannon (actually a spring gun). You don't find many men ofhis ca
d1i1m1o1n [39]

Answer:

V=15.3 m/s

Explanation:

To solve this problem, we have to use the energy conservation theorem:

U_e+K_i+U_{gi}+W_{friction}=K_f+U_{gf}

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U_e=\frac{1}{2}*k*x^2\\U_e=\frac{1}{2}*1100N/m*(4m)^2\\U_e=8800J

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U_{gf}=m*g*h\\U_{gf}=60kg*9.8*2.5\\U_{gf}=1470J

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3 0
3 years ago
1. A 1000 kg bag of sand has an<br> acceleration of 0.5m/s/s. What is the<br> force on the bag?
densk [106]

Answer:

We conclude that the force on the bag is 500 N.

Explanation:

Given

  • Mass m = 1000 kg
  • Acceleration a = 0.5 m/s²

To determine

Force F = ?

We know that when a force is applied to a body, it produces acceleration.

<u>Important Tip: </u>

  • We can determine the force on the bag using the formula F = ma

Using the formula

F = ma

where

  • F is the force
  • m is the mass
  • a is the acceleration

now substitute m = 1000, and a = 0.5 m/s² in the formula

F = ma

F = (1000)(0.5)

F=500 N

Therefore, we conclude that the force on the bag is 500 N.

5 0
3 years ago
When running a 100 meter race Donald reaches his maximum speed when he is 40 meters from the starting line, and 7 seconds have e
Slav-nsk [51]

Answer:

Part a)

v_{max} = 7 m/s

Part b)

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Part c)

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Part d)

d = 50.5 m

Explanation:

As we know that he start from rest and moves with uniform acceleration

so here we can say that

d = v\Delta t

as we know here that he move with uniform speed from t = 7 to t = 11

So we will have

68 - 40 = v(11 - 7)

28 = 4 v

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Part b)

If Donald runs for 3 s after reaching his maximum speed

So here distance moved by Donald

d = v t

d = 7 \times 3 = 21 m

Part c)

Distance of Donald from start line is given as

d = 40 + 21

d = 61 m

Part d)

Distance from start line after t = 8.5 s

d = 40 + vt

d = 40 + (7)(1.5)

d = 50.5 m

5 0
3 years ago
Read 2 more answers
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