Question Text
Question 1 :
A stone drop from height 'h' reaches at earth surface in 1 sec. If the same stone is taken to moon and dropped freely from height h, then it will reach the surface of moon in ..... sec
Question 2 :
Two cars are travelling towards each other on a straight road at velocities $15ms^{-1}$ and $16ms^{-1}$ respectively. When they are $150$m apart, both the drivers apply the breaks and the cars decelerates at $3ms^{-2}$ and $4ms^{-2}$ until they stop. How for apart will they be when they have come to a stop.
Question 3 :
A particle is moving on a straight line path with constant acceleration directed along the direction of instantaneous velocity. Which of following statements are false about the motion of particle?
Question 4 :
The ratio of time taken by two cars P and Q starting from rest moving along a straight road with equal accelerations is $\sqrt{2} : 1$, then the :
Question 5 :
A ball is released from the top of a tower of height $h$ meters. It takes $T$ second to reach the ground. What is the position of the ball in $T/3$ second?<br/>
Question 6 :
A force of $50$ $N$ is required to push a car on a level road with constant speed of $10$ ${m/s}$. The mass of the car is $500$ $kg$. What force should be applied to make the car accelerate at $1$ ${m/s^2}$?
Question 7 :
A body is dropped from a height $H$. The time taken to cover second half of the journey is
Question 8 :
A particle move along the parabolic path $x = y^{2} + 2y + 2$ in such a way that the $y$-component of velocity vector remains $5m/s$ during the motion. The magnitude of the acceleration of the particle is:
Question 9 :
A particle is thrown vertically up with speed $u$ so that distance covered in last second of flight is $35 m$. If $g = 10\,m/{s^2}$ then initial speed of throw is
Question 10 :
The instanteous speed of an object at the midpoint of a trip is defined to be the