Question 1 :
A balloon is rising vertically up with a velocity of $29$ $ms^{-1}$. A stone is dropped from it and it reaches the ground in $10$s. The height of the balloon when the stone was dropped from it is: $(g=9.8 ms^{-1})$.
Question 2 :
A rubber ball dropped from a certain height is an example of
Question 3 :
A stone falls from a balloon that is descending at a uniform rate of $12ms^{-1}$. The displacement of the stone from the point of release after 10sec is :-
Question 4 :
A boy can throw a stone up to a maximum height of 10 m. The maximum horizontal distance that boy throw the same stone up will be
Question 5 :
If a body is thrown up with an initial velocity u and covers a maximum height of h, then h is equal to
Question 6 :
The acceleration of a body projected upwards with a certain velocity is equal to :
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 far does the object travel before coming to rest? <br/>
Question 8 :
How do the directions of velocity and acceleration act when brakes are applied to a moving cycle?
Question 9 :
A motorcycle is moving with a velocity 80km/hr ahead of a car moving with a velocity of 65 km/hr in the same direction. What is the relative velocity of the motorcycle with respect to the car :-
Question 10 :
Consider a jet traveling at 1000 km/hr. If the jet shoots a laser in the same direction it is traveling, how fast will the laser be traveling relative to the ground?<br>
Question 11 :
A ball is dropped from a certain height, and at that exact same moment a rock is fired horizontally from the exact same height above ground level.<br>Assuming that air resistance is negligible, which object will strike the ground first?
Question 12 : <p>A helicopter is flying south with a speed of $50\ kmh^{-1}$. A train is moving with the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be $50 \sqrt {2}\ kmh^{-1}$ towards</p>
Question 13 :
Two stones are dropped from the top of a tower at half a second apart. The time after dropping the first stone at which the distance between the two stones is 20 m is $(g = 10 ms^{-2})$
Question 14 :
A stone is thrown upwards and it rises to a height of $200 m$. The relative velocity of the stone with respect to the earth will be maximum at :
Question 16 :
A bus moving with a speed of $10m/s$ on a straight road. A scooterist wishes to overtake the bus in $100s$. If the bus is at a distance of $1km$ from the scooterist, with what speed should the scooterist chase the bus?
Question 17 :
An iron ball and a wooden ball of the same radius are released from a height H in vacuum. The times taken by both of them of reach the ground are
Question 18 :
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 19 :
If a ball is thrown vertically upwards with 40 m/s its velocity after two second will be:-
Question 20 :
A stone dropped from the roof of a building takes 4 s to reach the ground. The height of the building is.
Question 21 :
A body is thrown up with an initial velocity u and it covers a maximum height of h, then h is equal to
Question 22 :
A stone is thrown upwards with a velocity $50 mg^{-1}$. Another stone is simultaneously thrown downwards from the same location with a velocity $50 ms^{-1}$. When the first stone is at the highest point, the relative velocity of the second stone w.r.t. the first stone is:
Question 23 :
A body is thrown vertically upwards and rises to a height of $10 m$. The time taken by the body to reach the highest point is
Question 24 :
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 25 :
A ball is dropped off a high building and strikes the ground with an impact velocity of 30 m/s. Calculate the height of building :<br/>
Question 27 :
Two particles A and B having different masses are projected from a tower with same speed. A is projected vertically upward and B vertically downward. On reaching the ground.<br>
Question 28 :
A body falls freely for $10 sec$. Its average velocity during this journey (take $g=10m{s}^{-2}$):
Question 29 :
A stone is dropped from a tower. It was found that it covered a distance of $45m$ during its last second of the fall. Calculate the time of the fall and the height of the tower? $\left( g=10m{ s }^{ -2 } \right) $
Question 30 :
A helicopter is flying south with a speed of $50\, km h^{-1}$. A train is moving at the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be towards
