Question

a) How would you arrive at a mathematical formula to measure
force using the second law of motion?
b) Calculate the force required to impart to a car of velocity 30m/s
in 10 s starting from rest. The mass of the car is 1500 kg​

Answer 1

Answer:

Here,

initial velocity of car(u)=0ms

−1

final velocity of car (v)=30ms

−1

time(t)=10s

we know,

v=u+at

30=0+a(10)

a=3ms

−2

we know,

F=ma

=1500×3

or F=4500N