Question

3.12 A ball slides on a horizontal surface in a straight
line. At the end of 3 seconds its velocity is
20 cm/s and at the end of 8 seconds its velocity is
zero. The magnitude of average acceleration from
the 3rd to the 8th second is
(1) 2.5 cm/s2
(2) 4.0 cm/s2
(3) 5.0 cm/s2
(4) 6.0 cm/s2​

Answer 1

Answer:

(1) 2.5cm/s2

Explanation:

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