A particle initially at rest is subjected to two forces. One is constant, the other is a retarding force proportional to the particle velocity. In the subsequent motion of the particle :
the acceleration will increase from zero to a constant value
the acceleration will decrease from its initial value to zero
the velocity will increase from zero to a constant value.
Both $(B)$ and $(C)$
The position of a particle moving along $x$-axis given by $x=\left(-2 t^3+3 t^2+5\right) m$. The acceleration of particle at the instant its velocity becomes zero is ....... $m / s ^2$
A particle is moving along a curve. Then
A particle has initial velocity $(2\hat i + 3\hat j ) $ and has acceleration $(0.3\,\hat i + 0.2\,\hat j)$ . Its speed after $10\,s$ is
The figure shows a velocity-time graph of a particle moving along a straight line The maximum displacement of the particle is ........ $m$