Laws Of Motion Question 344

Question: A bridge is in the form of a semi-circle of radius 40m. The greatest speed with which a motor cycle can cross the bridge without leaving the ground at the highest point is (g=10ms2) (frictional force is negligibly small)

Options:

A) 40ms1

B) 20ms1

C) 30ms1

D) 15 ms1

Show Answer

Answer:

Correct Answer: B

Solution:

[b] v=gr=10×40=20ms1



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