The work-energy theorem explains the idea that the net work - the total work done by all the forces combined - done on an object is equal to the change in the kinetic energy of the object. After the net force is removed (no more work is being done) the object's total energy is altered as a result of the work that was done.
This idea is expressed in the following equation:
is the total work done
is the change in kinetic energy
is the final kinetic energy
is the initial kinetic energy
mark me as brainliest ❤️
Answer:
B. Mechanical energy= 50J+30J=80J
It is c which is four minutes per day
Answer: One quarter of the force
Explanation:
According to Newton's law of Gravitation, the force 
exerted between two bodies of masses 
and 
and separated by a distance 
is equal to the product of their masses and inversely proportional to the square of the distance:
(1)
Where 
is the gravitational constant
This means that the gravity force decreases when the distance between these two bodies increases.
In this context, if the distance between the capsule and the Earth increases twice, the new distance will be 
.
Substituting this distance in (1):
(2)
<u>Finally:</u>
>>>This means the force toward Earth becomes one quarter "weaker"
Answer:
Explanation:
When we shoot the dart upwards the time taken by the dart to go straight up and again come back is given as
here we can say
put t = 4.6 s then we have
Now in order to find the maximum range we can say
so in order to have maximum range we can say
