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4 years ago

A plane mirror is placed to the right of an object. The image formed by the mirror will be a

2 answers:

6 0

A plane mirror always produces the virtual image of the object and the mirror image is inverted sideways. Therefore, the image formed by the mirror will be a virtual image that appears to be on the left of the mirror.

astraxan [27]4 years ago

5 0

Answer: A plane mirror is placed to the right of an object. The image formed by the mirror will be a virtual image that appears to be on the left of the mirror.

Explanation:

The image formed by a plane mirror is always virtual and erect. It is of the same size as the real object.

If the object is placed on the right side of the front of the mirror then the image is appeared on the left side in the mirror and vice versa. This phenomenon is called lateral inversion.

Therefore, the image formed by the mirror will be a virtual image that appears to be on the left of the mirror.

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3 years ago

An object accelerates at 5 m/s2, over a 3 second time period to a final velocity of 20 m/s. What is the initial velocity?

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3 years ago

You are standing 30 m from a window that is 30 m off the ground. Your friend tries to toss you something, but only throws it str

pochemuha

Answer:

minimum initial velocity is 21.35 m/s

Explanation:

given data

distance S = 30 m

height h = 30 m

maximum acceleration a = 2 m/s²

to find out

minimum initial velocity that your friend could have thrown the object to enable you to catch

solution

first we get here time with the help of second equation of motion

time = $\sqrt{\frac{2h}{a} }$ ..................1

put her value we get

time = $\sqrt{\frac{2*30}{2} }$

time = 5.477 second

and that is time which tossed object must be take so we apply here again second equation of motion that is

-S = ut - 0.5 × gt² .......................2

-30 = u× 5.477 - 0.5 ×9.8×5.477²

solve it we get

u = 21.35 m/s

so minimum initial velocity is 21.35 m/s

3 0

3 years ago

Read 2 more answers