Suppose that you throw a rock into the air from the top of a cliff. The initial upward velocity is 15 m/sec.
a. How high will the rock be above the cliff after two seconds?
b. Where will it be after four seconds ?
c. When will it again be at the same level you threw it?
d. When will it hit the water, 50 meters below the cliff?

a. 10.4m above the cliff

b. 18.4m below the cliff

c. Os or 3.1s

d. 5.1s

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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