Respuesta :
Explanation:
Power is found through the equation,
P
=
W
t
W
is the work done in joules
t
is the time taken in seconds
Work done is given by the equation,
W
=
F
⋅
d
F
is the force exerted in newtons
d
is the distance moved in meters
And so, the work done is:
W
=
35
N
⋅
10
m
=
350
J
Therefore, the power used up is:
P
=
350
J
5
s
=
70 W
Power is found through the equation,
P
=
W
t
W
is the work done in joules
t
is the time taken in seconds
Work done is given by the equation,
W
=
F
⋅
d
F
is the force exerted in newtons
d
is the distance moved in meters
And so, the work done is:
W
=
35
N
⋅
10
m
=
350
J
Therefore, the power used up is:
P
=
350
J
5
s
=
70 W
The correct answer is 70W
What is power?
Power is the rate at which work is done or energy is transferred in a unit of time.
How to Calculate Power?
- The equation for power is P = W/t.
- P stands for power (in watts).
- W stands for the amount of work done (in Joules) or energy. expended (in Joules).
- t stands for the amount of time (in seconds).
So, according to formula
P = W/t
Now Work done is force x Distance
so, W= 35x10=350J
Substituting the value of W in formula of power is work done / time
Therefore, 350/5= 70Watts
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