Question

The velocity of a body depends on time according to the equation v=20+0.1t .the body is undergoing?

Answer 1

Here we have given the relation between velocity of the body and time.....

so we know that...

{im assuming you know differentiation}

Acceleration =dv/dt

=d(20+0.1t)/dt

=d(20)/dt+ d(0.1t)/dt

=0 + 0.1 ==>> 0.1m/s²

Now the acceleration came out to be constant and thus independent of time.....

So this is the condition of *rectilinear or straight line motion* .....

{ differentiation of a constant like 20 is zero..... }