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Rainbow [258]
2 years ago
6

A small mailbag is released from a helicopter that is descending steadily at 2.00 m/s. After 3.00 s.

Physics
1 answer:
Misha Larkins [42]2 years ago
4 0

Answer:

Explanation:

Initial velocity of mailbag u = 2 m/s

acceleration downwards a = g = 9.8 m/s²

time t = 3 s

a ) final velocity v = ?

v = u + at

= 2 + 9.8 x 3

= 31.4 m /s

b )

s = ut + 1/2 g t²

s is relative displacement of mailbag

u = relative initial velocity of mailbag = 0

relative acceleration = g = 9.8 m /s²

time t = 3 s

s = 0 + 1/2 x 9.8 x 3²

= 44.1 m

relative displacement of mailbag = 44.1 m .

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2 years ago
the refractive index of cooking oil is 1.47, and the refractive index of water is 1.33. A thick layer of cooking oil is floating
VARVARA [1.3K]
When light travels from a medium with higher refractive index to a medium with lower refractive index, there is a critical angle after which all the light is reflected (so, there is no refraction).

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In our problem, n1=1.47 and n2=1.33, so the critical angle is
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2 years ago
An object moving at a constant velocity will always have a
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Read 2 more answers
It is known that birds can detect the earth's magnetic field, but the mechanism of how they do this is not known. It has been su
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Answer:

A) 0.50 mV

Explanation:

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where

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3 years ago
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