Motion Test - 7...

A car is moving on a circular track of radius R covering equal distance in equal intervals of time. This shows that the car has

Starting from rest objects $$1$$ falls freely for $$4$$ seconds and object $$2$$ falls freely for $$8$$ seconds .Compared to object $$1$$, object $$2$$ falls

A rocket of initial mass $$5000 kg$$ ejects gets at a constant rate of $$60kg/s$$ with a relative speed of $$2050 m/s$$. Acceleration of the rocket 15 second after it is blasted off from the surface of earth will be ($$g = 10m/{s}^{2}$$?)

A particle is moving in x-y plane . At certain instant of time. The components of its velocity and acceleration are as follows $$V_x=3\ m/s$$, $$V_y = 4\ m/s$$, $${ a }_{ x }=2\ m/s^{ 2 }$$ and $${ a }_{ y }=1\ m/s^{ 2 }$$ The rate of change of speed at this moment is 

A particle is moving in x-y plane . At certain instant of time. The components of its velocity and acceleration are as follows $$V_x = 3\ m/s$$, $$V_y = 4\ m/s$$, $${ a }_{ x }=2\ m/s^{ 2 }$$ and $${ a }_{ y }=1\ m/s^{ 2 }$$. The rate of change of speed at this moment is 

Is it possible for an object's velocity to increase while its acceleration decreases?

What is the angle between instantaneous displacement and acceleration during the retarded motion

The position-time $$(x - t)$$ graph for a body thrown vertically upwards from ground is best shown by 

Corresponding to the process shown in figure, what is heat given to the gas in the process ABCA ?

In a motion with constant acceleration the velocity is reduced to zero in $$5$$ seconds and after covering a distance of $$100\ m$$. The distance covered by the particle in next $$5$$ second will be :-