A uniform rod of mass 1 kg and length 1 m is kept vertical …

Physics System of Particles Rotational Motion Mix MCQ (Single Correct)

A uniform rod of mass 1 kg and length 1 m is kept vertical on the edge of a horizontal table. The rod is hit at a height 75 cm from table surface as to provide impulse 5 N/S in horizontal direction. Then -

Displacement of rod after 1 sec is 5

Initial velocity of rod is 5 m/s which increases with time

Initial angular velocity of rod is 15 rad/sec which increases with time

Numbers of rotation in 1 sec is

Text Solution

Verified by Experts

The correct answer is:

CHECK THE SOLUTION.

(a, b, d)

Just after impulse -

Velocity of centre of mass =

= 5 m/s (Horizontal)

Angular velocity of rod = = 15 rad/s

∴ Displacement of centre of mass =

[x = Displacement in horizontal direction,

y = Displacement in vertical direction]

= = m

Angular velocity of rod will not increase with time as there is no angular acceleration about axis passing through centre of mass (Torque of mg about centre of mass is zero as it acts through centre of mass)

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Share this question

Text Solution

Prepare Smarter with CGP Edu

Write a Review

Commentary

Student Reviews

Similar Questions