Show that for bodies projected with equal velocities at angle that exceed or fall short of `45^@` by equal amount, the ranges are equal.

Show that the dot product two equal vector is equal to the square of magnitude of either of them.

Show that volt/metre is equal to Newton/coulomb.

Two bodies are thrown with same velocity at angle alpha and (90-alpha) with the horizontal. What is the ratio of their ranges ?

From the top of a cliff 73.5 m a body is projected with a velocity of 19.6 m/s at an angle of 30^@ with the horizontal. Determine the time of flight, the distance from the foot of the tower and velocity with which the body strike the ground. g =9.8 m/ s^2

The maximum height attained by a projectile when thrown at angle theta with the horizontal is found to be half the horizontal range. Then theta is equal to

Two equal velocities have got a resultant equal to either.what is the angle between them ?

A body is projected at an angle of 45^@ with KE , The kinetic energy at highest point is