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 5 of 5.

Vvn reddy said:   8 years ago
.2*100*9.8=196.

Root applied by 196=14 so the answer is 14.
(2)

Praveen said:   8 years ago
Mv2/r = co.eff.friction x m x g.
(3)

Deriba Fufa said:   7 years ago
Please explain the formula.
(1)

Nuclei said:   7 years ago
It is based on the Newton 2nd law of Motion.
(1)

Ashish said:   6 years ago
mv^2/r = u(friction)mg.

By using above formula "v" can be calculated.
(2)

Chinmaya said:   5 years ago
Overturning is counterbalanced by lateral friction in order to prevent from skid.
Overturning (centrifugal force) = frictional force.
Mv^2/r = UN=Umg (m is cancelled out both side).
V^2/100 = .2*10,
V = √(2*100),
V = 14.142 m/s..
(5)


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