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s2008m [1.1K]
3 years ago
12

A student lifts a box of books 2 meters with a force of 45 N. He then carries the box 10 meters to the living room. What is the

total amount of work done in this situation?
PLEASE ANSWER FAST
Physics
1 answer:
Alisiya [41]3 years ago
5 0

Answer:

90J

Explanation:

The only time work is being done is when he lifts the box off the ground. Therefore, using the work formula, 2 x 45, you get 90J. Hope this helps someone.

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Help Please
andriy [413]

Explanation:

define speed because change in motion is known as it is also the definition of speed and if there is change in motion then there will be increase of speed or decrease of speed so the answer is speed

6 0
3 years ago
The depth of a circular well is 5m. water level is below 2m from the upper face of the wall. Find the pressure at its base ? (g=
Eddi Din [679]

Answer:

7m

Explanation:

5+2=7 and then I added in the "m" and got 7m, so presumably g=7m.

4 0
3 years ago
Read 2 more answers
A block with a weight of 620 N is pulled up at a constant speed on a very smooth ramp by a constant force. The angle of the ramp
GuDViN [60]

The work done by the force in pulling the block all the way to the top of the ramp is 3.486 kJ.

<h3>What is work done?</h3>

Work done is equal to product of force applied and distance moved.

Work = Force x Distance

Given is  a block with a weight of 620 N is pulled up at a constant speed on a very smooth ramp by a constant force. The angle of the ramp with respect to the horizontal is θ = 23.5° and the length of the ramp is l = 14.1 m.

From the Newton's law of motion,

ma =F-mg sinθ =0

So, the force F = mg sinθ

Plug the values, we get

F = 620N x sin 23.5°

F = 247.224 N

Work done by motor is  W= F x d

The force is equal to the weight F = mg

So, W = 247.224 x 14.1

W = 3.486 kJ

Thus, the work done by the force in pulling the block all the way to the top of the ramp is  3.486 kJ.

Learn more about Work done

brainly.com/question/13662169

#SPJ1

7 0
2 years ago
Which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?
Fittoniya [83]
The item with the most inertia is the one with the greatest mass.
It's easy to identify because it's also the heaviest one.

There are a great many other issues that make something
difficult for movers to move, besides its weight.  Size, shape,
handles, wheels, getting it around tight corners, etc.  So we
can't necessarily say that the heaviest item is the one that
presents the biggest problem for the movers.
6 0
3 years ago
Which statement describes the effects of forces on an object
lukranit [14]

Answer:

Sorry this isn’t going to be any help. You don’t have any statement that I’m able to see.

Explanation:

8 0
3 years ago
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