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Ratling [72]
2 years ago
10

At what height above the ground must a body of mass 20kg be situated in order to have potential energy equal in value to the Kin

etic energy possessed by another body of mass 20kg moving with a velocity of 10m/s? (Take g = 10m/s?)​
Physics
1 answer:
AlladinOne [14]2 years ago
5 0

Answer:


Assuming the height of the first body is h and the speed of the second one is v, just equate the PE of the first with the KE of the second:

mgh = (1/2) mv^2

since they have equal mass, it cancels out and you can solve for h.

Explanation:

You might be interested in
List and explain Newton’s Laws of Motion. Give an example for each.
irga5000 [103]

Answer:

If you use the same force to push a truck and a car, the car will have more acceleration than the truck because the car has less mass.

It is easier to push an empty shopping cart than a full one, because the full shopping cart has more mass than the empty one. This means that more force is required to push the shopping cart.

When a person kicks a ball the person exerts force in a specific direction, that is the direction in which it will travel. In addition to this, the stronger the ball is kicked, the stronger the force we put on it and the further away it will travel.

Suppose two people are walking and among the two people, if one is heavier than the other, then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.

When riding a bicycle, the bicycle acts as mass and our leg muscles pushing on the pedals of the bicycle is the force.

Explanation:

8 0
3 years ago
How many atoms of each element are in the chemical formula P205?
Irina-Kira [14]

2 atoms of P (phosphorus) and 5 atoms of O (oxygen)

Explanation:

The chemical formula of a generic compound is written as

A_n B_m

where

A and B are the symbols of the elements contained in the compound

n and m are the number of atoms of each element, A and B respectively

In this problem, the compound given is

P_2 O_5

where:

- P is the symbol of the chemical element phosphorus

- O is the symbol of the chemical element oxygen

We see that the number following P is 2, so there are 2 atoms of phosphorus, while the number following O is 5, so there are 5 atoms of oxygen.

Learn more about compounds here:

brainly.com/question/10216585

brainly.com/question/2861241

brainly.com/question/10585691

#LearnwithBrainly

5 0
3 years ago
A man applies a force of 100 Newtons to a rock for 60 seconds, but the rock does not not move. What is the amount of work done b
frozen [14]
Well if the rock doesn't move, then there is no amount of work done. There is no work done on an object if a force is applied to the object but it DOES NOT change its position, in this case is the rock.
7 0
4 years ago
If light waves are coherent, a. they shift over time. b. their intensity is less than that of incoherent light. c. they remain i
pychu [463]
The correct option is: (c) They  remain in Phase

Two waves <span>are </span>coherent if the following three conditions are met:
1) They<span> have </span><span>the same frequency.
2) They have the same waveform. 
3) They remain in phase.

Hence the correct option is C.</span>
5 0
3 years ago
A student runs 35 m east, then 12 m west. What is the distance run by the student?
lora16 [44]
47m total just add them up 35 + 12 = 47
4 0
3 years ago
Read 2 more answers
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