papercut313 papercut313

25-07-2021
Physics

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A 2kg ball is rolled along the floor for 0.8 m at a constant speed of 6 m/s. What is the work done by gravity?

A, 0
B, 16 J
C, 72 J
D, 450 J
E, 90 J

Respuesta :

nguyenthimytrinh063 nguyenthimytrinh063

25-07-2021

=F×s×cosa=2×g×0,8×cos90°= 0

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mwabamwaba2004 mwabamwaba2004

25-07-2021

Answer:

work done=force×distance

=(2×10)×0.8

=16J

I hope this helps

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