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Olegator [25]
3 years ago
9

Sam and his Dad went grocery shopping. As they went up and down the aisle, adding items to their cart, something changed. The ca

rt got heavier as they added groceries. As the cart became heavier, it also became harder to push. What else MOST LIKELY changed as Sam and his Dad shopped? A) The force of the cart. B) The speed of the cart. C) The size of the cart. D) The direction of the cart.
Physics
2 answers:
Amanda [17]3 years ago
8 0
B)
The speed of the cart changed because it stopped. 

Hope I could help!
-Marshy
Fantom [35]3 years ago
7 0

It’s b i even checked it myself

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3 years ago
Armand hands the rock to Pierre, who is standing next to the trampoline. Explain how Armand moves, in terms of the forces acting
Nikolay [14]

Answer:

Armando's weight ,restored force created by the trampoline

a harmonic movement within the trampoline

Explanation:

In a trampoline we have two forces that actuate Armando's weight and the restored force created by the trampoline that depends on the deformation distance of the elastic canvas.

Amando's weight is vertical and directed towards the center of the Earth and has a constant value, this weight is balanced with the elastic force the springboard exerts on Armando in a vertical direction.

In general, when entering the trampoline, a small jump is made, this creates a speed that deforms the canvas until the speed is reduced to zero, at this point the elastic force is greater than the weight and the boy begins to climb, After the boy leaves the canvas he meets only the force of gravity and his speed decreases to zero and begins his fall.

In Summary Armando is in a harmonic movement within the trampoline

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3 years ago
What does it mean for forces to be in equilibrium?.
lapo4ka [179]

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2 years ago
an object of mass m is rotating about a fixed axis with angular momentum l. its moment of inertia about this axis is i. what is
Tems11 [23]

The Kinetic energy would be 1/2IL².

<h3>What is Rotational Kinetic energy ?</h3>

  • Rotational energy also known as angular kinetic energy is defined as: The kinetic energy due to the rotation of an object and is part of its total kinetic energy. Rotational kinetic energy is directly proportional to the rotational inertia and the square of the magnitude of the angular velocity.

As we know linear Kinetic energy = 1/2mv²

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Similarly rotational kinetic energy is given by = 1/2IL²

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To know more about the Kinetic energy , visit:

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1 year ago
Which statement best describes the energy changes that occur while a child is riding on a sled down a steep, snow-covered hill?
svp [43]
The answer is C, because they moved from a stand still to down the hill
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