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alekssr [168]
3 years ago
11

A boy flying a kite is standing 30 ft from a point directly under the kite. if the string to the kite is 50 ft long, what is the

angle of elevation of the kite (the angle between the ground where the boy is standing and the kite string)?

Physics
1 answer:
vagabundo [1.1K]3 years ago
3 0
Draw a diagram to illustrate the problem as shown in the figure below.
h =  height of the kite above ground.

By definition, the angle of elevation is
cos \theta = \frac{30}{50} =0.6
Therefore
\theta = cos^{-1} 0.6 = 53.1 \, deg.

Answer: 53° (nearest integer)

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4 years ago
Which of the following is not a use of electromagnetic waves? a night-vision bremote controls c x-rays d all are used of electro
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avanturin [10]

Answer:

(a) W= 44N

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Explanation:

Data

T=44 N : Maximum force that the rope can withstand without breaking

Newton's second law:

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∑F : algebraic sum of the forces in Newton (N)

m : mass in kilograms (kg)

a : acceleration in meters over second square (m/s²)

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W= 44/1.39

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7 0
4 years ago
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