Motion Test - 6...

A truck traveling due north at $$50 \ km/hr$$ turns west and travels at the same speed. What is the change in magnitude of speed?

A body starts from rest under uniform acceleration. If distance covered by it in $$3^{rd}$$ second is $$3m$$, then the distance covered in $$5^{th}$$ second will be

A body is dropped from a height $$39.2\ m$$. After it crosses the half distance, the acceleration due to gravity ceases to act. Then the body will hit the ground with a velocity of  (Take $$g=9.8\ ms^{-2}$$) 

A body travels a distance x in first two second and distance y in next two second. The relation between $$x$$ and $$y$$ is 

The speed-time graph of a particle moving along a solid cover is shown below. The distance traversed by the particle from $$t = 0$$ to $$t = 3$$ is:-

Ball $$A$$ is thrown up vertically with speed $$10 \ m/s$$. At the same instant another ball $$B$$ is released from rest at height $$h$$. At time $$t$$, the speed of $$A$$ relative to $$B$$ is

A car covers a distance of $$2 \ km$$ in $$2.5$$ minutes. If it covers half of the distance with speed $$40 \ km/hr$$, the rest distance it shall cover with a speed of:

In uniform circular motion the 

A particle travels half of the distance of a straight journey with a speed $$6 \  m/s$$. The remaining part of the distance is covered with speed $$2 \  m/s$$ for half of the time and with speed $$4 m/s$$ for other half of time. The average speed of the particle is :

In a uniform circular motion -