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Answers
Answer:
Answer:
1960 J & 980 J is the required energy.
Explanation:
Given:-
Mass of Object ,m = 40kg
height ,h = 5 m
To Find:-
Potential Energy
Kinetic Energy when it is half way down
Solution:-
As we know that the acceleration due to gravity on earth surface is 9.8m/s².
Potential Energy is defined as the energy possess by body due to its position.
• PE = mgh
where,
PE is Potential Energy
m is the mass
g is the acceleration due to gravity
h is the height
Substitute the value we get
→ PE = 40×9.8×5
→ PE = 200 × 9.8
→ PE = 1960 J
Hence, Potential Energy at maximum height is 1960 Joules.
As we know that Law of Conservation of energy states that energy can neither be created or nor be destroyed . It can be transferred from one state to another. Potential Energy convert into Kinetic. As the object is allowed to fall in its half way .
Therefore, new height of object = 5/2 = 2.5 m
• KE = mgh
Substitute the value we getAnswer:
Given :-
Mass = 40 kg
Height = 5 m
To Find :-
PE
object is allowed to fall find its kinetic energy when it is half way down
Solution :-
As we know that
\huge \fbox{PE = Mgh}PE = Mgh
PE is the Potential Energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: PE = 40 \times 9.8 \times 5PE=40×9.8×5
Taking g as 9.8 m/s²
\sf \: PE = 200 \times 9.8PE=200×9.8
\frak \red{PE= 1960 J}PE=1960J
Now,
When object fall half down
Height will be divided by 2
5/2 = 2.5 m
\huge \fbox{KE = mgh}KE = mgh
KE is the Kinetic energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: KE = 40 \times 2.5 \times 9.8KE=40×2.5×9.8
\sf \: KE \: = 4 \times 98 \times 2.5KE=4×98×2.5
\frak \red{KE \: = 980 \: joules{}}KE=980joules
Answer:
1960 J & 980 J is the required energy.
Explanation:
Given:-
Mass of Object ,m = 40kg
height ,h = 5 m
To Find:-
Potential Energy
Kinetic Energy when it is half way down
Solution:-
As we know that the acceleration due to gravity on earth surface is 9.8m/s².
Potential Energy is defined as the energy possess by body due to its position.
• PE = mgh
where,
PE is Potential Energy
m is the mass
g is the acceleration due to gravity
h is the height
Substitute the value we get
→ PE = 40×9.8×5
→ PE = 200 × 9.8
→ PE = 1960 J
Hence, Potential Energy at maximum height is 1960 Joules.
As we know that Law of Conservation of energy states that energy can neither be created or nor be destroyed . It can be transferred from one state to another. Potential Energy convert into Kinetic. As the object is allowed to fall in its half way .
Therefore, new height of object = 5/2 = 2.5 m
• KE = mgh
Substitute the value we getAnswer:
Given :-
Mass = 40 kg
Height = 5 m
To Find :-
PE
object is allowed to fall find its kinetic energy when it is half way down
Solution :-
As we know that
\huge \fbox{PE = Mgh}PE = Mgh
PE is the Potential Energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: PE = 40 \times 9.8 \times 5PE=40×9.8×5
Taking g as 9.8 m/s²
\sf \: PE = 200 \times 9.8PE=200×9.8
\frak \red{PE= 1960 J}PE=1960J
Now,
When object fall half down
Height will be divided by 2
5/2 = 2.5 m
\huge \fbox{KE = mgh}KE = mgh
KE is the Kinetic energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: KE = 40 \times 2.5 \times 9.8KE=40×2.5×9.8
\sf \: KE \: = 4 \times 98 \times 2.5KE=4×98×2.5
\frak \red{KE \: = 980 \: joules{}}KE=980joules
Answer:
1960 J & 980 J is the required energy.
Explanation:
Given:-
Mass of Object ,m = 40kg
height ,h = 5 m
To Find:-
Potential Energy
Kinetic Energy when it is half way down
Solution:-
As we know that the acceleration due to gravity on earth surface is 9.8m/s².
Potential Energy is defined as the energy possess by body due to its position.
• PE = mgh
where,
PE is Potential Energy
m is the mass
g is the acceleration due to gravity
h is the height
Substitute the value we get
→ PE = 40×9.8×5
→ PE = 200 × 9.8
→ PE = 1960 J
Hence, Potential Energy at maximum height is 1960 Joules.
As we know that Law of Conservation of energy states that energy can neither be created or nor be destroyed . It can be transferred from one state to another. Potential Energy convert into Kinetic. As the object is allowed to fall in its half way .
Therefore, new height of object = 5/2 = 2.5 m
• KE = mgh
Substitute the value we getAnswer:
Given :-
Mass = 40 kg
Height = 5 m
To Find :-
PE
object is allowed to fall find its kinetic energy when it is half way down
Solution :-
As we know that
\huge \fbox{PE = Mgh}PE = Mgh
PE is the Potential Energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: PE = 40 \times 9.8 \times 5PE=40×9.8×5
Taking g as 9.8 m/s²
\sf \: PE = 200 \times 9.8PE=200×9.8
\frak \red{PE= 1960 J}PE=1960J
Now,
When object fall half down
Height will be divided by 2
5/2 = 2.5 m
\huge \fbox{KE = mgh}KE = mgh
KE is the Kinetic energy
M is the Mass
G is the Acceleration due to gravity
H is the Height
\sf \: KE = 40 \times 2.5 \times 9.8KE=40×2.5×9.8
\sf \: KE \: = 4 \times 98 \times 2.5KE=4×98×2.5
\frak \red{KE \: = 980 \: joules{}}KE=980joules