A-LevelPhysicsKinematicsOct/Nov 2020Paper 2 Q29 Marks
A small block is lifted vertically upwards by a toy aircraft, as illustrated in Fig. 2.1. [Figure 2.1] As the block is moving upwards, the string breaks at time t = 0. The block initially continues moving upwards and then falls and hits the ground at time t = 0.90 s. The variation with time t of the velocity v of the block is shown in Fig. 2.2. [Figure 2.2] Air resistance is negligible.
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