Question Text
Question 1 :
A ball is released from the top of height 'h' metres. It takes 't' seconds to reach the ground. Where is the ball at the time t/2 s?
Question 2 :
A particle moves in a straight line in such a way that its velocity at any point is given by ${v}^{2}=2-3x$, where $x$ is measured from a fixed point. The acceleration is
Question 3 :
A cart begins from rest at the top of a long incline and rolls with a constant acceleration of $2m/s^{2}$. How far has the cart moved along the incline after rolling for $3$ seconds?
Question 4 :
The average velocity of a body moving with uniform acceleration after travelling a distance of $3.06 m$ is $0.34 ms^{-1}$. If the change in velocity of the body is $0.18ms^{-1}$ during this time, its uniform acceleration is:
Question 5 :
A truck and a car are moving with equal velocity, on applying brakes, both will stop after certain distance and then :<br>
Question 6 :
Two cars are moving in the same direction with the same speed of $30km/hr$. They are separated by $5km$. What is the speed of car moving in the opposite direction if it meets the two cars at an interval of $4$ minute:
Question 7 :
A ship moves along the equator to the east with a speed $30\ km/h$. Southeastern wind blows ${ 60 }^{ \circ  }$ to the east with $15\ km{ h }^{ -1 }$. Find the wind velocity relative to the ship.<br/>
Question 9 :
Which of the following decreases in motion along a straight line with constant retardation?
Question 10 :
A car travelling at a speed of $30 km/hour$ is brought to a halt in 8 m by applying brakes. If the same car is travelling at $60 km/hour$, it can be brought to a halt with the same braking force in