Write true or false for the following statements
A quantitv which can be represented completely by magnitude alone is called a vector quantity.
False
Explain with reason, which of the following graphs can possibly represent the motion of a particle observed in nature ?
What is velocity$-$time graph ? State how it can be used to find
$(i)$ the acceleration of a body,
$(ii)$ the displacement of the body,
$(iii)$ the distance travelled in a given time.
Name the force which is responsible for change in position or state of an object.
State which of the following situations are possible and give an example of each of these
$(a)$ A body moving with constant acceleration but with zero velocity.
$(b)$ A body moving horizontally with an acceleration in vertical direction.
$(c)$ A body moving with a constant velocity in an accelerated motion.
An object is dropped from rest at a height of $150\, m$ and simultaneously another object is dropped from rest at a height $100 \,m$. What is the difference in their heights after $2\,\sec $ if both the objects drop with same accelerations ? How does the difference in heights vary with time ?
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