SATHEE: Laws Of Motion Question 300

Laws Of Motion Question 300

Question: A particle of mass m is made to move with uniform speed v along the perimeter of a regular polygon of n sides, inscribed in a circle of radius a. The magnitude of impulse applied at each comer of the polygon is :

Options:

A) $2 m v \sin \frac{π}{n}$

B) $m v \sin \frac{π}{n}$

C) $m v \sin \frac{n}{π}$

D) $m v \sin \frac{n}{π}$

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $\vec{j} = m ({\vec{v}}_{f} - {\vec{v}}_{i})$

$= 2 m v \sin θ / 2 = 2 m v \sin π / n .$

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Laws Of Motion Question 300

Question: A particle of mass m is made to move with uniform speed v along the perimeter of a regular polygon of n sides, inscribed in a circle of radius a. The magnitude of impulse applied at each comer of the polygon is :

Options:

Answer:

Solution:

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