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A ball is projected from the top of a tower. Neglecting air resistance, which of the following statements about its motion is/are correct?
I. Vertical acceleration on the ball decreases as it fall
II. The vertical force on the bail remains constant
III. The vertical speed on the ball increases as it fall
A stone is projected vertically upwards with a velocity of 20ms-1. Two seconds later, a second stone is similarly projected with the same velocity. When the two stones meet, the second one is rising at a velocity of 10ms-1 Neglecting air resistance, calculate the length of time the second stone is in motion before they meet.
An object is projected with velocity of 100ms-1 from the ground level at an angle 0 to the vertical. If the total time of flight of the projectile is 10s, Calculate 0. [g = 10ms-2]
A ball is thrown vertically upwards from the ground with an initial velocity of 50cms-1. What is the total time spent by the ball in the air? (g=10ms-2)