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Question 19

A stone is projected from a cliff at a height of 30m above sea level with a velocity of (4i+7j)ms−1(4\mathbf{i} + 7\mathbf{j})\text{ms}^{-1}(4i+7j)ms−1.

a.

Find the speed of the stone after 2.5 seconds.

[4]
b.

Find the greatest height of the stone above sea level.

[3]
c.

Find the horizontal distance travelled by the stone before it hits the sea.

[4]

Projectiles Questions

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