Kinematics Question 28
O/N 10/P21/Q2
A ball is thrown horizontally from the top of a building, as shown in Fig. 2.1.
8.2 ms-1
MAHAD AMER
Fig. 2.1
The ball is thrown with a horizontal speed of 8.2 ms~'. The side of the building is vertical. At point P on the path of the ball, the ball is distance x from the building and is moving at an angle of 60° to the horizontal. Air resistance is negligible.
(a) For the ball at point P, (i)
show that the vertical component of its velocity is 14.2 ms*
determine the vertical distance through which the ball has fallen,
distance =
... m [2]
(iii) determine the horizontal distance x.