Answer:
5940N
Explanation:
Given parameters:
Mass of car = 1.08 x 10³kg = 1080kg
Time for acceleration = 12s
Displacement = 132m
Unknown:
Net force = ?
Solution
According to newton's second law of motion; "the acceleration of a body is directly proportional to its force and inversely proportional to mass".
F = m x a
F is the net force
m is the mass
a is the acceleration
Acceleration = [tex]\frac{V - U}{t}[/tex]
V is the final velocity
U is the initial velocity
t is the time taken
To find the final velocity here which is V;
V = [tex]\frac{displacement}{time}[/tex] = [tex]\frac{132}{12}[/tex] = 11m/s
since the body accelerates uniformly from rest, U = 0
Now, solve for acceleration;
A = [tex]\frac{11 - 0}{12}[/tex] = 5.5m/s²
So;
F = ma
F = 1080 x 5.5 = 5940N
