vectors and displacement

timer Asked: Oct 25th, 2015

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 350 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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