Question

2. A stone is dropped from a cliff. What will be its speed when it has fallen 100 m?

Answer 1

Answer:

980ms

Step-by-step explanation:

gravity: 9.8ms

so, we have to multiply it by the distance fallen from a point...

so, answer:

9.8*100=980ms

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Answer 2

Answer:

Given: Three angles: 120°, x° and (3y + 6)°.

To find: The value of x and y?

Solution:

                Now we have given three angles and the arrows show that the lines are parallel.

Now:

                120 + x = 180 .................(linear pair as both the lines are parallel)

                x = 60 degree.

Now:

                x = 3y + 6 ...............(corresponding angles as the lines are parallel)

                60 = 3y + 6

                54 = 3y

                y = 54/3

                y = 18

Answer:

             So the value of x is 60 and y is 18.

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