Question

calculate the force required to imported velocity of 30 m/s in 10 seconds the mass of car is 1500 kg?

Answer 1

we have
,mass=1500kg

final velocity,v=30m/s,

time=10s

so,initial velocity,u=0m/s

by the equation of motion,
 v=u+at
30=0+a*10
30/10=a
a=3m/s²

we know that,
force = mass*acceleration
f=m*a
f=1500kg*3m/s²
 f=4500N

hence force requared to impart to a car is 4500N 

Answer 2

Given:
mass(m)=1500 kg 
final velocity(v)=30 m/s
time(t)=10 s 
initial velocity(u)=0 m/s 

by Newton's first equation of motion,i.e.
 v=u+at 
30=0+a×10 
30/10=a 
∴a=3 m/s²
∵ f=m×a 
∴f=1500 kg× 3 m/s² 
 ∴f=4500 N