Answer:
The flow of electric charge
Explanation:
Electricity:It is defined flow of electric charge.
It is defined as the flow of charge per unit time.
Electric charge can be negative or positive .
Mathematical representation :
If charge Q flowing through the conductor and time taken in flow of charge is t seconds.
Then, current
S.I unit of current is Ampere.It is scalar quantity.
Answer:The flow of electric charge.
Answer :
(a) The acceleration of the truck is,
(b) The distance covered by the truck is, 117.8 m
Explanation :
By the 1st equation of motion,
...........(1)
where,
v = final velocity = 20 m/s
u = initial velocity = 30 m/s
t = time = 4.7 s
a = acceleration of the truck = ?
Now put all the given values in the above equation 1, we get:
The acceleration of the truck is,
By the 2nd equation of motion,
...........(2)
where,
s = distance covered by the truck = ?
u = initial velocity = 30 m/s
t = time = 4.7 s
a = acceleration of the truck =
Now put all the given values in the above equation 2, we get:
By solving the term, we get:
The distance covered by the truck is, 117.8 m