Motion Test - 6...

When a body is accelerated: (i) its velocity always changes (ii) its speed always changes (iii) its direction always changes (iv) its speed may or may not change Which of the following is correct?

A particle is moving with velocity of $$4\ ms^{-1}$$ along positive $$x-$$direction. An acceleration of $$1\ ms^{-2}$$ is aceted on the particle along negative $$x-$$direction. Find the distance traveled by the particle in $$10\ s$$.

The height of the body after 5 s from the ground is $$(g=9.8m/s^2).$$

The speed-time graph of a body is straight line parallel to time axis. The body has:

Two bodies , one held $$ 1 \, m $$ vertically above the other , are released simultaneously and fall freely under gravity . After $$ 2 $$ second , the relative separation of the bodies will be : 

If we denote speed by $$S$$, distance by $$D$$ and time by $$T$$ the relationship these equation is? 

A bus travels 54 km in 90 minutes. The speed of the bus is?

The correct symbol to represent the speed of an object is

Four cars $$A, B, C$$ and $$D$$ are moving on a levelled road. Their distance versus time graphs are shown in Fig $$8.2$$. Choose the correct statement

$$18\ km\ h^{-1}$$ is equal to :