a car of mass 500kg traveling at 36km/hr is brought to rest over a distance of 40km. Find the average retardation on average breaking force
Answers
Answered by
4
Is it right or not..??
Attachments:
ghalejames123:
thank u
Answered by
7
Answer:
1.25m/s^2
625N
Explanation:
mass(m)=500kg
initial velocity(u)=36km/hr
=10m/s
final velocity(v)=0
distance covered(s)=40m
now,
v^2=u^2+2as
0=(10)^2+2*a*40
0=100+80a
-100=80a
a=-100/80
a=-1.25
retardation(a)=-(-1.25m/s^2)
=1.25m/s^2
again,
F=ma
=500*1.25
=625N
Similar questions