Speed and Velocity

What do you mean by velocity?

A man standing on a platform $225 \mathrm{m}$long notices that a train travelling at a uniform speed him in $6 \mathrm{s}$ and passes by the platform in $21 \mathrm{s}$. Find (i) the length of the train and (ii) the speed of the train. 

If a scooterist drives at the rate of$24 \mathrm{kmph}$, he reaches his destination $5 \mathrm{minutes}$ too late; if he drives at the rate of $30 \mathrm{kmph}$, he reaches his destination$4 \mathrm{minutes}$ too soon. Then his destination is at a distance of 

What is speed and time?

The formula of speed is distance upon time. Why?

Three different balls of masses $m_1, m_2\text{ and }{m}_3$ are allowed to roll from rest on three frictionless path $OA, OB and OC$ respectively from $O$. The height of $O$ above the ground is $h$. The respective speeds $S_1, S_2\text{ and }{S}_3\text{ of }{m}_1, m_2\text{ and }{m}_3$ at bottom $A, B\text{ and }C$ are

Four children are standing at the corners $A, B C\text{ and }D$ of a square of side $l$. They simultaneously start running such that $A$ runs towards $B$, $B$ runs towards $C$, $C$ runs towards $D$ and $D$ runs towards $A$, each with a velocity $v$. They will meet at $O$ after a time,

The speedometer of an automobile measures

Which of the following is not a unit of speed?

List the differences between speed and velocity.

What are the differences between spped and velocity of the object?

If work, force and time are represented by $A$,$B$and $C$ respectively then the term $\left(\frac{A}{BC}\right)will present$

If force, momentum, and displacement are represented by $A$,$B$ and $C$ respectively then the term $\left[\frac{AC}{B}\right]$ will represent:

A $100 \mathrm{m}$ long train is moving with a uniform velocity of $45 \mathrm{km} {\mathrm{h}}^{-1}$. The time taken by the train to cross a bridge of length $1 \mathrm{km}$ is

A man walks on a straight road from his home to a market $2.5 \mathrm{km}$ away with a speed of $5 \mathrm{km} {\mathrm{h}}^{-1}$. Finding the market closed, he instantly turns and walks back home with a speed of $7.5 \mathrm{km} {\mathrm{h}}^{-1}$. The average speed of the man over the interval of time o to $40 \min$ is equal to

A man walks on a straight road from his home to a market $2.5 \mathrm{km}$ away with a speed of $5 \mathrm{km} {\mathrm{h}}^{-1}$. Finding the market closed, he instantly turns and walks back home with a speed of $7 \mathrm{km} {\mathrm{h}}^{-1}$. The average speed of the man over the interval of time $0$ to $40 \min$ is equal to

If a car covers $\frac{2}{5}\mathrm{th}$ of the total distance with $v_1$ speed and $\frac{3}{5}\mathrm{th}$ distance with $v_2$ then average speed is

If a car covers $\frac{2}{5}\mathrm{th}$ of the total distance with $v_1$ speed and $\frac{3}{5}\mathrm{th}$ distance with $v_2$ then average speed is

The displacement (s) of a particle moving along a straight line is related to time t as $s=a{t}^3+b{t}^3+ct$, where a,b and c are constants. What is the ratio of its initial velocity and initial acceleration?

A car travels half the distance with a constant speed of $40 km h^{-1}$ and the remaining half with a constant speed of $60 km h^{-1}$. The average speed of the car is: