Question Text
Question 1 :
A ball is thrown vertically upward with speed $10$ m/s and it returns to the ground with speed $8$ m/s. A constant air resistance acts. The maximum height attained by the ball is?
Question 2 :
A body is thrown vertically upwards and rises to a height of 10 m. The velocity with which the body was thrown upwards is $\displaystyle \left( g=9.8{ m }/{ { s }^{ 2 } } \right) $
Question 3 :
Three bodies $A, B$ and $C$ are moving in a straight line in the same direction such that relative velocity of $A$ w.r.t $B$ is $2m/s$, relative velocity of $B$ w.r.t $C$ is $5m/s$.<br/>Find the relative velocity of $C$ w.r.t $A$. 
Question 4 :
A purple car is moving three times as fast as a yellow car. Each car slows down to a stop with the same constant acceleration.<br>How much more distance is required for the purple car to stop?
Question 5 :
A stone thrown upward with a speed 'u' from the top of the tower reaches the ground with a velocity '3u'. The height of the tower is :-
Question 6 :
An elevator is moving up with $2.5 m{ s }^{ -1 }$. A bolt in the elevator ceiling $3\ m$ above the elevator falls. How long (in seconds) does it take for the bolt to fall on the floor of the elevator?<br>
Question 7 :
A block of mass $2\ kg$ starts moving with initial speed of $10\ m/s$ and accelerates at $-2 m/s^2$. How much time will pass until it comes to rest? 
Question 8 :
A ball of mass m is dropped from a high building and strikes the ground $ 4 $ seconds later. Calculate the height of the building.
Question 9 :
A block of mass $2\ kg$ starts moving with initial speed of $10\ m/s$ and accelerates at $-2 m/s^2$. How far does the object travel before coming to rest? <br/>
Question 10 :
A body projected vertically upwards with a velocity u return to the starting point in 4second .If $g=10m^{-2}$ the value of u is $(m/s)$:-