General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 23)
23.
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
Discussion:
46 comments Page 3 of 5.
Deep said:
1 decade ago
Where this formula is given?
Pablo said:
1 decade ago
But max speed can be 140m/sec. Because even it will result in the overturn.
Gerald said:
1 decade ago
Can someone who knows this make it clear to us please.
Arav said:
1 decade ago
Dear @Bhavna will you please check units of your formula, you will find physically impossible.
Ashok kumar said:
1 decade ago
Traction force = centripetal force.
umg = mv^2/r.
u = coefficient of friction.
m = mass.
g = 9.8.
r = radius.
v = max velocity at turning.
So v= under root ugr.
v = under root 0.2*9.8*100.
v =14 m/sec.
umg = mv^2/r.
u = coefficient of friction.
m = mass.
g = 9.8.
r = radius.
v = max velocity at turning.
So v= under root ugr.
v = under root 0.2*9.8*100.
v =14 m/sec.
Pratiksha Pimple said:
1 decade ago
By formula:
V = Under root(mu.r.g).
V = Under root(0.2*100*9.8).
V = Under root(20*9.8).
V = Under root(196).
Therefore V = 14m/s.
V = Under root(mu.r.g).
V = Under root(0.2*100*9.8).
V = Under root(20*9.8).
V = Under root(196).
Therefore V = 14m/s.
Kunal kshirsagar said:
1 decade ago
Maximum velocity corresponds to the maximum inward static frictional force exerted on the tyre.
= > mv^2/R = μmg.
= > v (maximum).
= (μgR).
= (0.20*9.81* 00).
= 14 m/s.
= > mv^2/R = μmg.
= > v (maximum).
= (μgR).
= (0.20*9.81* 00).
= 14 m/s.
Supreeth said:
1 decade ago
mv2/r = μmg.
v2/100 = 0.2*9.8.
v2 = 196.
v = 14 m/s.
v2/100 = 0.2*9.8.
v2 = 196.
v = 14 m/s.
Akin said:
1 decade ago
Please which law states this @Bhiva?
(1)
Ekhayemhe Eugene said:
10 years ago
Equating Centripetal force (F = mv^2/r) formula and that of coefficient of friction (U = F/R).
You will get 14 m/sec.
You will get 14 m/sec.
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