Two cars move in the same direction at 60 km h⁻¹ and 40 km h⁻¹. Find the velocity of the first relative to the second, and if they moved towards each other.

Distinguish between average velocity and instantaneous velocity.

A body is thrown vertically upwards with a speed of 30 m s⁻¹. Find the maximum height it reaches and the time it takes to return. Take g = 10 m s⁻².

A car travels the first half of a journey at 40 km h⁻¹ and the second half at 60 km h⁻¹. Find its average speed for the whole journey.

A body is projected with a speed of 20 m s⁻¹ at 30° to the horizontal. Find the maximum height reached and the time of flight. Take g = 10 m s⁻².

For a projectile launched at speed u, at what angle is the horizontal range greatest, and what is that range?

Why is the horizontal component of the velocity of a projectile constant while the vertical component changes?