MCQ
car moves on a circular road. It describes equal angles about the centre in equal intervals of time. Which of the following statement about the velocity of the car is true
  • A
    Magnitude of velocity is not constant
  • B
    Both magnitude and direction of velocity change
  • C
    Velocity is directed towards the centre of the circle
  • Magnitude of velocity is constant but direction changes

Answer

Correct option: D.
Magnitude of velocity is constant but direction changes
d
(d)As body covers equal angle in equal time intervals. its angular velocity and hence magnitude of linear velocity is constant.

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

Similar questions

In the diagram shown, no friction at any contact surface. Initially, the spring has no deformation. What will be the maximum deformation in the spring? Consider all the strings to be sufficiency large. Consider the spring constant to be $K$.
$2\;gm$ of steam condenses when passed through $40gm$ of water initially at $25^oC.$ The condensation of steam raises the temperature of water to $54.3^oC.$ What is the latent heat of steam ........... $cal/g$
The position of a particle as a function of time $t$, is given by $x\left( t \right) = at+ b{t^2} - c{t^3}$ where $a, b$ and $c$ are constants. When the particle attains zero acceleration, then its velocity will be
A $metre$ scale is suspended vertically from a horizontal axis passing through one end of it. Its time period would be ....... $\sec$
A particle is tied to $20\, cm$ long string. It performs circular motion in vertical plane. What is the angular velocity of string when the tension in the string at the top is zero  ........ $rad/sec$
The periodic time of a simple pendulum of length $1\, m $ and amplitude $2 \,cm $ is $5\, seconds$. If the amplitude is made $4\, cm$, its periodic time in seconds will be
A tuning fork vibrating with a sonometer having $20\,cm$ wire produces $5$ beats per sec. The beat frequency does not change if the length of the wire is changed to $21\,cm$. The frequency of the tuning fork must be ..... $Hz$
The position $x$ of a particle with respect to time $t$ along $x-$axis is given by $x = 9{t^2} - {t^3}$ where $x$ is in metres and $t$ in seconds. What will be the position of this particle when it achieves maximum speed along the $x$ direction ?..........$m$
The quantity $X = \frac{{{\varepsilon _0}LV}}{t}$: ${\varepsilon _0}$ is the permittivity of free space, $L$ is length, $V$ is potential difference and $t$ is time. The dimensions of $X$ are same as that of
An organ pipe open at one end is vibrating in first overtone and is in resonance with another pipe open at both ends and vibrating in third harmonic. The ratio of length of two pipes is