Question 1 :
A jeep is accelerating uniformly in a straight line with $5 m/s^2$. Calculate the time required to cover a distance of 200 m if jeep starts from rest :
Question 2 :
A ball is shot vertically upward with a given initial velocity. It reaches a maximum height of $100$m. If on a second shot, the initial velocity is doubled then the ball will reach a maximum height of.
Question 3 :
In uniform circular motion, the velocity vector and acceleration vector are:
Question 4 :
<p>A car moving with a speed of $40 km/hr$ can be stopped by applying breaks for  $2$ km. If the same car is moving with a speed of $80 km/hr$, what is the minimum stopping distance? Assume constant retardation.</p>
Question 5 :
A parachutist along with the parachute has a mass of 75 kg. He jumps from a large height and is coming down with a uniform velocity with the parachute fully opened. The magnitude of force due to the air resistance is: ( take g$={10m/s}^{ 2 }$).<br/>
Question 6 :
A force of $10 N$ acts on a body of mass $5 kg$. Find the acceleration produced.
Question 7 :
Assertion: Water at the foot of the water fall is always at different temperature from that at the top.
Reason: The potential energy of water at the top is converted into heat energy during falling
Question 8 :
The momentum of a body of given mass is proportional to its:
Question 9 :
An electric heater of power $3 \ kW$ is used for $10 \ h$. How much energy does it consume? Express you answer in $kWh$.
Question 10 :
Coolie A takes $1$min to raise a box of mass m through a height of $2.0$m. another coolie B takes $30$s for the same job. Which one has greater power?
Question 11 :
A truck of mass $30,000\ kg$ moves up an inclined plane of slope $1$ in $100$ at a speed of $30\ km/h$. The power of the truck is $ \left( Given\ g=10\ ms^{ -1 } \right) $
Question 15 :
If the density of a metal is 8.2 g/cc, its relative density is.
Question 16 :
A U-tube is partially filled with water.Oil which does not mix with water is next poured into one side, until water rises by 25 cm on th other side.If the density of oil is 0.8, the oil level will stand higher than the water level by
Question 18 :
At the surface of a certain planet, acceleration due to gravity is one quarter of that on earth. A brass ball is transported to this planet, then find the percentage change in its weight.
Question 19 :
Relative density of a body wrt a medium of density $\rho_1$ is a. What is the relative density of the body wrt a medium of density $\rho_2$