Answer:
a. Net force = 40 Newton.
b. Acceleration = 8m/s²
Explanation:
Given the following data;
Force on postive x-axis = 90N
Force on negative x-axis = 50N
Mass = 5kg
a. To find the net force;
Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.
The net force is equal to the difference between the two forces applied because they are acting in opposite directions.
Net force = 90 - 50
Net force = 40N
b. To find the acceleration;
Acceleration = net force/mass
Acceleration = 40/5
Acceleration = 8m/s²
<h3><u>Answer;</u></h3>
The current decreases.
<h3><u>Explanation;</u></h3>
- <em><u>From the Ohm's law, current through a conductor is directly proportional to the potential difference at constant temperature and pressure.</u></em>
- Mathematically; I =V/R, where R is the resistance, I is the current and V is the voltage or the potential difference.
- <em><u>Current is inversely proportional to the resistance, thus and increase in resistance decreases the amount of current in a circuit and vice versa.</u></em>
- <em><u>In a series circuit, as more and more resistors are added, the effective or equivalent resistance of the circuit increases and the total current of the circuit decreases.</u></em>
Answer:
I think it's c but don't know for sure
(sorry something wrong w my keyboard so write each line for the explnation!)
63.0 m
Explanation:
Acceleration of car
=
v
−
u
t
=
0 ms
−
1
−
21.0 ms
−
1
6.00 s
=
−
3.50 ms
−
2
S
=
v
2
−
u
2
2a
S
=
(
0 ms
−
1
)
2
−
(
21.0 ms
−
1
)
2
2
×
−
3.50 ms
−
2
S
=
63.0
m