Uniform Motion and Its Equation

Find the resultant of two equal velocities of $90 \mathrm{m} {\mathrm{s}}^{-1}$ inclined at an angle $60°$.

If the resultant of two simultaneous velocities of $30 \mathrm{m} {\mathrm{s}}^{-1}$ and $60 \mathrm{m} {\mathrm{s}}^{-1}$ is perpendicular to the smaller velocity, find the angle between them and their resultant velocity.

Find the resultant of two equal velocities of $60 \mathrm{m} {\mathrm{s}}^{-1}$ inclined at an angle $120°$ with the axis.

Two coplanar velocity vectors $\left|\overrightarrow{A}\right|=5 \mathrm{units}, \left|\overrightarrow{\mathrm{B}}\right|=10 \mathrm{units}$

 and an angle of $30°$ with the X-axis. Find the resultant velocity vector.

What are the different methods to find resultant of coplanar velocities?

Explain the relation between polygon law of velocities and triangular law of velocities.

Explain polygon law of velocities.

The polygon law of velocities is just an extension of parallelogram law of velocities.

The polygon law of velocities is just an extension of ______.

A boat moves at a speed of $20 \mathrm{km} {\mathrm{h}}^{-1}$ due south across a river which has a current which flows $10 \mathrm{km} {\mathrm{h}}^{-1}$ in the east direction. What is the resultant velocity of the boat?

A boat moves at a speed of $10 \mathrm{km} {\mathrm{h}}^{-1}$ due south across a river which has a current which flows $5 \mathrm{km} {\mathrm{h}}^{-1}$ in the east direction. What is the resultant velocity of the boat?

Write the equation to find the resultant velocity of two velocity vectors.

The SI unit of resultant velocity is $\mathrm{m} {\mathrm{s}}^{-2}$.

What is the SI unit of resultant velocity?

The speed of a body moving with uniform acceleration is $u$. This speed is doubled while covering a distance $S$. When it covers an additional distance $S$, its speed would become

At he instant a motor bike starts from rest in a given direction, a car overtakes the motor bike, both moving in the same direction. The speed-time graphs for motor bike and car given.

Then

The engine of a train can impart a maximum acceleration of $1\mathrm{m}{\mathrm{s}}^{-2}$and the brakes can give a maximum retardation of $3\mathrm{m}{\mathrm{s}}^{-2}$. The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

A body starts from rest and moves with a constant acceleration. The ratio of distance covered in the $n^{\mathrm{th}}$ second to the distance covered in $n$ second is

A bullet moving with a speed of $100 {\mathrm{m}\mathrm{s}}^{-1}$ can just penetrate two planks of equal thickness. Then, the number of such planks penetrated by the same bullet when the speed is doubled will be

The motor of an electric train can give it an acceleration of $1 {\mathrm{m}\mathrm{s}}^{-2}$ and brakes can give a negative acceleration of $3 {\mathrm{m}\mathrm{s}}^{-2}.$ The shortest time in which the train can make a trip between the two stations 1215 m apart is