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**Cathaloc2** Question A is ok but try it anyway.I cannot do (B) i need help iv exam tomorrow.no one seems to be able to do this question.

(A)A projectile is launched horizontally out to sea with a initial velocity of 98m/s from the top of a vertical cliff 78.4 m high.

(i)what is the time taken to reach the sea?

(ii)how far from the base of the cliff will it hit the sea?

(B)__I CAN NOT DO NEED IT DONE ASAP PLEASE.__

the angle of the launch is now raised to 30 degrees above the horizontal.

(i)what is the time taken to reach the sea?

(ii)how far from the base of the cliff will it hit the sea?

(iii)how long will it take to reach its greatest height above the point of launch?

(iv)what is the greatest height above the point of launch?