Download App

Rotational Mechanics — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsRotational Mechanics1 Mark
Question
A sphere is rolled on a rough horizontal surface. It gradually slows down and stops. The force of friction tries to:
  1. Decrease the linear velocity.
  2. Increase the angular velocity.
  3. Increase the linear momentum.
  4. Decrease the angular velocity.
✓

Answer

  1. Decrease the linear velocity.
  2. Increase the angular velocity.

Explanation:

If a sphere is rolled on a rough horizontal surface, the force of friction tries to oppose the linear motion and favours the angular motion.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Rotational Mechanics→Rotational Mechanics — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

As a wave propagates
→
Which of the following is not represented in correct unit
→
As the temperature is increased, the time period of a pendulum.
  1. Increases proportionately with temperature.
  2. Increases.
  3. Decreases.
  4. Remains constant.
→
In the absence of intermolecular force of attraction, the observed pressure $P$ will be
→
The centre of mass of a system of particles is at the origin. It follows that:
→
A ship of mass $3 \times {10^7}\,kg$ initially at rest is pulled by a force of $5 \times {10^4}\,N$ through a distance of $3 \,m$. Assume that the resistance due to water is negligible, the speed of the ship is ........... $m/s$
→
Light waves travel in vacuum along the X-axis. Which of the following may represent the wavefronts?
  1. x = c.
  2. y = c.
  3. z = c.
  4. x + y + z = c.
→
$\vec{A}$ is a vector quantity such that $|\vec{A}|=$ nonzero constant. Which of the following expressions is true for $\vec{A}$ $?$
→
An iron ball and a wooden ball of the same radius are released from a height $‘h’$ in vacuum. The time taken by both of them to reach the ground is
→
A train is moving with a speed of $12 \mathrm{~m} / \mathrm{s}$ on rails which are $1.5 \mathrm{~m}$ apart. To negotiate a curve radius $400 \mathrm{~m}$, the height by which the outer rail should be raised with respect to the inner rail is (Given, $g=$ $10 \mathrm{~m} / \mathrm{s}^2$ ) :
→