The figure shows a velocity-time graph of a particle moving along a straight line If the particle starts from the position $x_0=-15\,m$ , then its position at $t=2\,s$ will be ........ $m$
$-5$
$5 $
$10$
$15 $
Two balls are thrown horizontally from the top of a tower with velocities $v_1$ and $v_2$ in opposite directions at the same time. After how much time the angle between velocities of balls becomes $90^o$ ?
A particle moves in a plane along an elliptic path given by $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$. At point $(0, b)$, the $x$-component of velocity is $u$. The $y$-component of acceleration at this point is
What can be the angle between velocity and acceleration for the motion on a straight line ? Explain with example.
A particle moves in a circle of radius $R$, with a constant speed $v$. Then, during a time interval $[\pi R/3v]$, which of the following is true?