# vectors and displacement

**Question description**

** 1.**A stone of mass 0.20 kg is thrown with seed 22 ms

^{-1}from the edge

Of a cliff that is 32 m above the sea. The initial velocity of the stone

makes
an angle of 35^{0} with the horizontal. Air resistance is neglected.

a. i Determine the horizontal and vertical components of the initial velocity.

ii Sketch graphs showing the variation with time of the horizontal components

of velocity.b. i Calculate the maximum height above the cliff reached by the stone.

ii
State the net force on the stone at the highest point in its path.

c. i Determine the speed of the stone as it hits the sea.

ii Hence determine the time it took the stone to reach
the surface of the sea.

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