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
0.14 m/s
140 m/s
1.4 km/s
14 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
46 comments Page 2 of 5.

Ahmad said:   9 years ago
Can a car move without friction?

Ahmad said:   9 years ago
Forces required to move a car in a circular track?

A. Centripetal force
B. Friction
C. Both
D. None

Answer the question.
(1)

Ihsan ullah said:   9 years ago
Thanks to everyone. Really helpful explanation.

Josephine said:   9 years ago
Thanks for all your good work. It is really helpful.

Antim said:   9 years ago
Centrifugal force = Friction force,

mv^2/r = friction * mg.

Kailas said:   9 years ago
Thanks to everyone. Really helpful explanation.

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.

Akin said:   1 decade ago
Please which law states this @Bhiva?
(1)

Supreeth said:   1 decade ago
mv2/r = μmg.
v2/100 = 0.2*9.8.
v2 = 196.
v = 14 m/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.


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