The direction of acceleration of an object moving in a circular path is
directed away from the centre of the circle
directed upward in the plane of the circle
none of these
directed towards the centre of the circle
The displacement of a moving object in a given interval of time is zero. Would the distance travelled by the object also be zero ? Justify you answer.
A body moving with uniform acceleration has velocities $20 \,m s ^{-1}$ and $30\, m s ^{-1}$. when passing two points $A$ and $B$. Then the velocity midway between $A$ and $B$ is
Mention the nature of motion of a body if its displacement$-$time graph is a straight line parallel to time axis.
The slope of the line on a position-time graph reveals information about an object's velocity. What conclusion can you draw regarding the motion of an object, if the graph is a
$(i)$ Horizontal line.
$(ii)$ Straight diagonal line.
$(iii)$ Curved line.
A particle is moving in a circular path of radius $r$. The displacement after half a circle would be :