Question

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Find final velocity and time taken​

Answer 1

Explanation:

u=20

retardation= - acceleration = -4

distance= 4

now use v²-u²=2as

v²=(2×-4×4)/400

= -32/400

=-0.08

v=

$\sqrt{0.08}$

squareroot of

Answer 2

Answer:

v is equal to 0.08 square root