Example 3 - 9702/22/M/J/17: (b) A ball of mass 0.45 kg leaves the edge of a table with a horizontal velocity v, as shown in Fig. 2.1. The height of the table is 1.25 m. The ball travels a distance of 1.50 m horizontally before hitting the floor. #9702s17p22 #ASprojectileP2 #Lv3
Air resistance is negligible. Calculate, for the ball,
(i) the horizontal velocity v as it leaves the table
(ii) the velocity just as it hits the floor
(iii) the kinetic energy just as it hits the floor,
(iv) the loss in gravitational potential energy as it falls from the table to the floor
(c) Explain why the kinetic energy of the ball in (b)(iii) does not equal the loss of gravitational potential energy in (b)(iv)
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Recorded at MCKL #CambridgeALevelPhysics
9702_s17_qp22
