A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. Let h be the maximum height from ground reached by ball after leaving track at B. Then If track makes an angle with horizontal at B then maximum height attained by ball will be :

If the lines and represent three consecutive sides of a rectangle then ab

Hence ab=18
Choice 1 is correct

   The product obtained in this reaction is

A ball is dropped on a floor and bounces back to a height somewhat less than the original height, which of the curves depicts its motion correctly?

Acceleration-time graph of a body is shown. The corresponding velocity-time graph of the same body is

A particle starts from rest at and moves in a straight line with an acceleration as shown below. The velocity of the particle at is

The velocity-time graph of a body is shown in figure. The ratio of the ... during the intervals and is.

then C

A particle moves along the sides of a square of side wuth a velocity of . Its average velocity is

The acceleration of a train between two stations 2 km apart is shown in the figure. The maximum speed of the train is

The distance-time graph of a particle at time makes angle 45 with time axis. After 1s, it makes angle 60 with time axis. What is the acceleration of the particle?

A particle starts from rest. Its acceleration versus time is as shown in the figure. The maximum speed of the particle will be

Diethyl ether on treatment with  in presence of sunlight gives:

Which of the following options is correct for the object having a straight line motion represented by the following graph

The graph for a particle is as shown. The distance travelled in the first four second is

When ethyl alcohol is dissolved in water, it is accompanied with: