SSC JE ME Quiz_ Engineering Mechanics Booster Quiz-7

When a particle moves in a circle with a uniform speed

The dimension of angular momentum is

A body is rotating uniformly about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on the axis is

The angular velocity of a fly wheel increases from 0 to 100 rad/s, in 10 seconds. What is its total angular displacement in this time?

A stone is released from an elevator going up with an acceleration ‘a’. The acceleration of the stone after the release is

In a projectile motion the velocity

The distance travelled by a body in first 5 seconds from its initial position, if velocity(v) time relation is given as v = 4t ____.

Three particles of masses 1 kg, 2 kg and 3 kg are placed at the corners A, B and C respectively of an equilateral triangle ABC of edge 1 m as shown in the figure. The (x,y) coordinates of the centre of mass will be:

Which of the following is vector quantity____?

Find friction force as shown in figure if block in motion

(take g = 10m/s²)