Time Period

Trending Questions

Two racing cars of masses $m_{1} a n d m_{2}$ are moving in circles of radii $r_{1} a n d r_{2}$ respectively. Their speeds are such that each makes a complete circle in the same duration of time t. The ratio of the angular speed of the first to the second car is

$m_{1} : m_{2}$
$1 : 1$
$r_{1} : r_{2}$
$m_{1} r_{1} : m_{2} r_{2}$

View Solution

The angular speed of seconds needle in a mechanical watch is

$\frac{π}{30} r a d / s$
$2 π r a d / s$
$π r a d / s$
$\frac{60}{π} r a d / s$

View Solution

Q. An athlete completes one round of a circular track of radius 10 m in 40 sec. The distance covered by him in 2 min 20 sec is

140 m
110 m
220 m
70 m

View Solution

Q. Two particles

A

and

B

are moving in a uniform circular motion in concentric circles of radius

r_{A}

and

r_{B}

with speed

v_{A}

and

v_{B}

respectively. The time period of rotation is the same. The ratio of angular speed of A to that of B will be

$r_{A} : r_{B}$
$v_{A} : v_{B}$
$r_{B} : r_{A}$
$1 : 1$

View Solution

Q. A clock is in x- y plane. Find angular velocity of second hand of a clock (in rad/s).

$\frac{π}{30} (-^j)$
$\frac{π}{60} (^k)$
$\frac{π}{30} (-^k)$
$\frac{π}{30} (^i)$

View Solution

Q. Two particles revolve concentrically in a horizontal plane in the same direction. The time required to complete one revolution for particle A is 3 min , while for particle B, it is 1 min. The time required for A to complete one revolution relative to B is