Reference no: EM132650581

1. A ball is thrown vertically upward with an initial velocity of 275 ms-1 from the edge of a cliff that is 500 m from the sea, as shown in figure. Determine :

• The ball's maximum height
• The time taken for the ball to reach its maximum height
• The time to hits the sea
• The speed with which it hits the sea (g = 10 ms-2)

2. A stone is thrown vertically up from the edge of cliff 298.0 m from sea. The initial velocity of stone is 198.00 ms-1. Determine:

• The maximum height of the stone
• The time when its hits the sea
• The velocity just before hitting the sea
• The distance the stone covers.
• The average speed and the average velocity for this motion.

3. A stone is thrown up from the edge of a cliff with velocity 145 ms-1. It reaches the bottom of the cliff 55.0 s later. Determine the height of the cliff

Calculate the speed of the ball as it hits the ground.

4. Bondan stands at the edge of a vertical cliff and throws a stone vertically upward. The stone leaves Bondan's hand with a speed v = 120 ms-1. The time between the stone leaving Vincent's hand and hitting the sea is 10 s. Assume air resistance is negligible.

Calculate:

(i) the maximum height reached by stone

(ii) the time taken by the stone to reach its maximum height

Determine the height of cliff