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Scilla [17]
3 years ago
15

A man started at his house and went to the post office, then to the pet store, and finally home again. What is the average veloc

ity if this trip took three hours?
Explain how you arrived at your answer.
Physics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

0

Explanation:

Defining velocity :

Velocity is a vector which is the ratio of a person's total displacement with time.

Displacement, in simple terms refers to the distance between an individual's initial position to his final position.

Man's initial position = House

After all his navigation and points covered irrespective of the distance ;

Final position = House

Hence, we can conclude that the man's Displacement is ;

Final position - Initial position = 0

Hence,

Velocity = Displacement / time taken

Velocity = 0 / 3

Velocity = 0

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3 years ago
A construction crane's cable lifts a 49.5-kg box upward with an acceleration of 1.30 m/s2. Find the tension in the rope.
Basile [38]

Verrrrry interesting question !

Force= (mass) x (acceleration)

               (49.5kg) x (1.3 m/s²) =

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That's the <u>net</u> force.  It's the combination of the tension in the rope
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 Force of gravity = "weight" = (mass) x (gravity) =
 
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The tension in the rope must be enough to balance the downward force
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6 0
3 years ago
-I...................ok
DIA [1.3K]

Answer:

What?

Explanation:

7 0
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