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a= v (1) - v (2)/ t = 14 - 10/20 = 4/20 = 0.2 m/s^2 south
Study of interaction between matter and energy using mechianical description
There is no direct relationship between power
and either of those quantities.
Answer:
50N
The table is managing to keep the dog up, the dog is not moving up or down so the force that the table applies to the dog must be equal to the dogs weight - I draw this conclusion from Newton's 3rd law.
W= mg
W = 5 × 9.8
W = 49N
round to.one significant figure = 50N
