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nadezda [96]
3 years ago
9

A person uses their hand to lift a 0.05-kg guniea pig from the ground at a constand speed.What is the force applied by the perso

n on the guinea pig? What is the net force on the guinea pig?
Physics
1 answer:
Ostrovityanka [42]3 years ago
3 0
The animal's weight is

                         (mass) x (gravity)

                 =      (0.05 kg) x (9.8 m/s²)  =  0.49 newton.

That's the minimum force you can use to pick it up.

That's the force applied by the person to pick up the pig
at a nice gentle constant speed.

Then the net force on the pig is zero.  The upward and downward
forces add up to zero, and that's why the animal is moving at a
constant speed, and not accelerating up or down.
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Ludmilka [50]

Answer:

The initial speed of the pelican is 8.81 m/s.

Explanation:

Given;

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horizontal distance, X = 8.9 m

The time of flight is given by;

t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2*5}{9.81} } \\\\t = 1.01 \ s

The initial horizontal speed of the pelican is given by;

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vₓ = 8.81 m/s

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lutik1710 [3]

Answer:

1) 327

2) 3

3) 109

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now I'm not 100% sure #4-6 are correct, but if 4 is right then 5 and 6 are, too.

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A ball has a kinetic energy of 106 J. If the ball is moving at a velocity of 2.01 m/s, what is the mass of the ball, in kilogram
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Answer:

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