List of top Physics Questions on Speed and velocity

The apparent frequency observed by a moving observer away from a stationary source is $20\%$ less than the actual frequency. If the velocity of sound in air is $330 \; ms^{-1}$ , then the velocity of the observer is

Speedometer of a car measures

A large number of bullets are fired in all directions with same speed v. What is the maximum area on the ground on which these bullets will spread.

Safety speed for vehicle moving along curved horizontal banked road.

The speed-time graph of a particle moving along a fixed direction is shown in the figure. The distance traversed by the particle between $t = 0\,s$ to $t = 10 \,s$ is

The displacement $ x $ of a body varies with time as $ x=-\frac{1}{3}{{t}^{2}}+16t+3 $ where $ x $ is in metre and t in second. The time taken by the body to come to rest is

The slope of the velocity time graph for retarded motion is

The velocity-time graph of a body is shown in figure. The displacement covered by the body in 8 s is

The velocity-time graph of a body moving in a straight line shown in the figure. The displacement and distance travelled by the body in 6 s are respectively

The position of an object moving along $x$-axis is given by $x = a + bt^2$, where $a = 8.5 \,m$ and $b = 2.5\, m \,s^{-2}$ and $t$ is measured in seconds. The instantaneous velocity of the object at $t = 2\,s$ is