3 years ago

A person throws a tennis ball 6 m/s straight up. How long does it take for it to come back to their hand?

Physics

1 answer:

Alja [10]3 years ago

7 0

(t) = 2t = 1.22 sec. I believe ...

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Read 2 more answers

A constant force of 11.8 N in the positive x direction acts on a 4.7-kg object as it moves from the origin to the point (1.6i –

zhenek [66]

Answer:

W = 18.88 J

Explanation:

Given that,

Constant force, F = 11.8 N (in +x direction)

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We need to find the work is done by the given force during this displacement. The work done by an object is given by the formula as follows :

$W=F{\cdot} d\\\\W=(11.8i){\cdot} (1.6i-4.6j)\\\\=11.8\times 1.6\\\\=18.88\ J$

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