Motion Test - 3...

Which one of the following best describes the motion of car A as shown on the graphs?

A body moving in circular motion with constant speed has :

When the speed of a car is $$v$$, the minimum distance over which it can be stopped is $$s$$. If the speed becomes $$nv$$, what will be the minimum distance over which it can be stopped during the same time?

The muzzle velocity of a certain rifle is $$330\ m{ s }^{ -1 }$$. At the end of one second, a bullet fired straight up into the air will travel a distance of

Two particles are projected vertically upwards with the same velocity on two different planets with accelerations due to gravities $${ g }_{ 1 }$$ and $${ g }_{ 2 }$$ respectively. If they fall back to their initial points of projection after lapse of times $${ t }_{ 1 }$$ and $${ t }_{ 2 }$$, respectively, then

The displacement of a particle as a function of time is shown in figure. The figure indicates that

The given figure shows the displacement-time curve of two particles $$P$$ and $$Q$$. Which of the following statements is correct?

A bullet, moving with a velocity of $$200cm/s$$ penetrates a wooden block and comes to rest after traversing $$4cm$$ inside it. What velocity is needed for traversing a distance of $$6cm$$ in the same block

Is the policeman right in arresting the driver to break speed limit?

Two balls $$A$$ and $$B$$ are simultaneously thrown. $$A$$ is thrown from the ground level with a velocity of $$20\ m{ s }^{ -1 }$$ in the upward direction and $$B$$ is thrown from a height of $$40\ m$$ in the downward direction with the same velocity. Where will the two balls meet?