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3 years ago

Discuss what it means to view a moving objectt from a frame of reference. Supply an example that illustrates your explanation.

1 answer:

5 0

what is frame of reference:
it is set of fixed points which are inter related on the basis of rest and motion..,, or an explanation of what an observer is doing..
examples:
1 ,, if you are in motion and observing something then frame of reference is motion... and if you are at rest then frame of motion is rest...
2 frame of reference may be place like if a passenger is sitting in a car then he is in motion with respect to the ground but he is at rest with respect to the car in which he is sitting ...
3 also if a passenger is in car and he is tossing a coin and you are on the ground ,, then for passenger it is in vertical motion but for you it is in parabolic arc .. hence there are two different views for two persons for the same thing i.e coin... :)

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riadik2000 [5.3K]

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3 years ago

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Licemer1 [7]

Answer:

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Explanation:

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3 years ago

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.23 2.23 times a second. A tack is stuck in the t

elena-14-01-66 [18.8K]

Explanation:

The given data is as follows.

Angular velocity ( $\omega$ ) = 2.23 rps

Distance from the center (R) = 0.379 m

First, we will convert revolutions per second into radian per second as follows.

= 2.23 revolutions per second

= $2.23 \times 2 \times 3.14 rad/s$

= 14.01 rad/s

Now, tangential speed will be calculated as follows.

Tangential speed, v = $R \times \omega$

= 0.379 x 14.01

= 5.31 m/s

Thus, we can conclude that the tack's tangential speed is 5.31 m/s.

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3 years ago

Car A m= 2000kg v=20 km/h Car B m= 2000kg v= 20km/h what is the location after impact

Darya [45]

Mass of car, M=2000kg

Velocity, V=72× 5/18 =20ms¹

Apply kinematic equation of motion

v² -u² = as

0 − 20² =2a×20

a=−10ms^-2

Breaking force, F=ma=2000×10=20 kN

Apply first kinematic equation

v = u +at

$t= \frac{v - u}{a} = \frac{0 - 20}{ - 10} = 2sec\\$

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3 years ago

Gia tốc a và vận tốc v cùng chiều khi nào trong một chu kì dao động điều hòa ?

Drupady [299]

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