A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given g = 9.8m/s²)

Question:

Options :

(a) At least 0.8 m/s
(b) Any speed less than 19.6 m/s
(c) Only with speed 19.6 m/s
(d) More than 19.6 m/s

Answer :

(d) More than 19.6 m/s

Answer Steps :

Step 1:

Step 2:

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Related Questions

The kinetic energy of a particle executing a linear SHM is 16 J, when it is in the mean position. If the amplitude is 25 cm, periodic time of the particle in second is (Mass of the particle = 51.2 g)

A body of mass ‘M’ executes SHM Along x-axis with frequency ‘n’. At a distance x from the mean position, the body has kinetic energy ‘K’ and potential energy ‘P’. The amplitude of oscillation of the SHM is

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