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Katen [24]
3 years ago
10

In the formula vy = ayt, what is the value of ay for an object in projectile motion?

Physics
2 answers:
Sergeu [11.5K]3 years ago
8 0
–9.8 m/s<span>2

Just took it and got it right!</span>
Deffense [45]3 years ago
6 0

Answer : The correct option is (A) -9.8\ m/s^2

Explanation :

The formula is given as :

v_y=a_yt

Where,

v_y is vertical component of velocity.

a_y is the vertical component of acceleration.

In a projectile motion, the particle moves in a path under the influence of gravity.

So, the vertical component of acceleration is -g i.e acceleration due to gravity.

Hence, the correct option is (a) " a_y=-9.8\ m/s^2 ".

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Plane polarized light with intensity I0 is incident on a polarizer. What angle should the principle axis make with respenct to t
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Answer:

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Explanation:

Given:

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Solution:

- The relation of transmitted Intensity I to to the incident intensity I_o on a plane paper with its principle axis is given by:

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- Where Q is the angle between the Incident polarized Light and its angle with the principle axis. Hence, Using the relation given above:

                                     Q = cos ^-1 (sqrt (I / I_o))

- Plug the values in:

                                     Q = cos^-1 ( sqrt (0.464))

                                     Q = cos^-1 (0.6811754546)

                                     Q = 47.06 degrees

                                   

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