Question

A 0.9 kg ball moves in a circle that is 0.4 m in radius at a speed of 4.0 m/s. Calculate its centripetal acceleration

Answer 1

Answer:

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Step-by-step explanation:

ANSWER

F= mv 2/r

F= 0.5×4×4/0.40

F= 8.0/0.4

= 80/4

=20N